Παραπομπή APA

Brian Bracegirdce & W h Freeman. (1985). Atlas of empryology (3.). Heinemann educational books Ltd.

Παραπομπή Chicago Style

Brian Bracegirdce και W h Freeman. Atlas of Empryology. 3. Heinemann educational books Ltd, 1985.

Παραπομπή MLA

Brian Bracegirdce και W h Freeman. Atlas of Empryology. 3. Heinemann educational books Ltd, 1985.