Não informado. (1909). Contributions from the Biological Laboratory of Brown University. Brown University, Biological Laboratory.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Contributions from the Biological Laboratory of Brown University. Providence, RI: Brown University, Biological Laboratory, 1909.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Contributions from the Biological Laboratory of Brown University. Brown University, Biological Laboratory, 1909.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.