Παραπομπή σε μορφή APA (7η εκδ.)

WALKER, R. (2005). Under the microscope the human body volume 4 making life: How we reproduce and grow. Grolier Educational.

Παραπομπή σε μορφή Chicago (17η εκδ.)

WALKER, Richard. Under the Microscope the Human Body Volume 4 Making Life: How We Reproduce and Grow. Danbury: Grolier Educational, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

WALKER, Richard. Under the Microscope the Human Body Volume 4 Making Life: How We Reproduce and Grow. Grolier Educational, 2005.