Citing your research sources is a key component of a professional monograph.
Your instructor, and anyone else for that matter, must be able to cross reference your monograph content with the sources of the information. This means that merely stating a long list of sources/references at the end of your monograph is not acceptable. You have to include the sources within the text.
The easiest way to do this is to allocate a number to each source and to then only include the source number in parenthesis right after the fact. See the example below. I prefer using the [ ] because they don’t require a shift key, but you can also use ( ) if you prefer.
Beware of ‘analysis paralysis’ – it is very easy to go completely overboard and spend hours and hours jumping from one resource to the next, looking for that elusive secret fact about the herb. Please do not think that the more references you include the more marks you’ll get. I’m more interested in the quality of the references you use.
And beware, just because somebody published something on a website does not mean that it is true.
Don’t Be A Copycat
Do not get into the lazy habit of copying paragraphs from your references.
Include single facts, one per line, as per the Buchu example below. This practice also forces you to distill the information which will deepen your learning and relationship with the herb.
EXAMPLE 1 Citing Sources
I start on a parsley monograph and first up are the botanical and common names. This I know by heart so my first source is myself. I then add myself to my source/reference list as number 1 and the  goes next to the two facts.
Next, I used my Mrs. Grieve to find synonyms for parsley and she confirms the information that I already knew. (Better to check that aging memory hey.) And she had a synonym I had forgotten about. After adding her to my references and giving her the next numerical number I add her to my ‘monograph text’.
Tip: I don’t bother with creating an alphabetical source/reference list. My lists are always in order of importance to me. I do however keep a master reference list and I consistently use the same numbering in all my monographs.
Here’s how my monograph entries will look in practice:
Latin binomial name:
Petroselinum crispum [1, 2]
Apium petroselinum [1,2]; Petroselinum lativum 
Sources / References:
1. Hoffman DC. Personal knowledge, experiences, and observations.
2. Grieve M. A Modern Herbal. Great Britain: Penguin Books; 1931.
EXAMPLE 2: Buchu. (Keeping entries to single facts per line)
Gravel (urinary stones) 
Bladder inflammation 
Bladder, catarrh 
Cystitis [1, 5]
Urethritis [1, 5]
Preparations and dosage
Infusion – 1 oz leaves to 1 pint boiling water, wineglass doses, 3 – 4 x daily 
Infusion – 1-2 tsp / cup boiling water; infuse 10 min; 3 x daily. 
Tincture – ½ to 1 drachm 
Tincture – 1-2ml; 3 x daily. 
1. Grieve M. A Modern Herbal. Great Britain: Penguin Books; 1931.
5. Hoffmann, David @ personal interview; January 2009.