Παραπομπή APA

E J Undeerwood. (1971). Trace elements in human and animal nutrition (3rd.). Academic press.

Παραπομπή Chicago Style

E J Undeerwood. Trace Elements in Human and Animal Nutrition. 3rd. Academic press, 1971.

Παραπομπή MLA

E J Undeerwood. Trace Elements in Human and Animal Nutrition. 3rd. Academic press, 1971.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.