Não informado. (2000). Transactions of the Illinois State Academy of Science. Illinois State Academy of Science.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Transactions of the Illinois State Academy of Science. Springfield, Ill: Illinois State Academy of Science, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Transactions of the Illinois State Academy of Science. Illinois State Academy of Science, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.