Παραπομπή APA

Shumway, w. (1942). Introduction to vetebrate embryology. John wiley.

Παραπομπή Chicago Style

Shumway, waldo. Introduction to Vetebrate Embryology. New york: John wiley, 1942.

Παραπομπή MLA

Shumway, waldo. Introduction to Vetebrate Embryology. John wiley, 1942.