Παραπομπή σε μορφή APA (7η εκδ.)

TWIST, C. Encyclopedia of science: Life on earth fossils and human ancestors the basics of life. Volume IV. Macmillan Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

TWIST, Clint. Encyclopedia of Science: Life on Earth Fossils and Human Ancestors the Basics of Life. Volume IV. Macmillan Publishing Company.

Παραπομπή σε μορφή MLA (8th εκδ.)

TWIST, Clint. Encyclopedia of Science: Life on Earth Fossils and Human Ancestors the Basics of Life. Volume IV. Macmillan Publishing Company.