Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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