WALKER, R. (2005). Under the microscope the human body volume 1 heart: How the blood gets around the body. Grolier Educational.
Citazione stile Chigago Style (17a edizione)WALKER, Richard. Under the Microscope the Human Body Volume 1 Heart: How the Blood Gets Around the Body. Danbury: Grolier Educational, 2005.
Citatione MLA (9a ed.)WALKER, Richard. Under the Microscope the Human Body Volume 1 Heart: How the Blood Gets Around the Body. Grolier Educational, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.