Gaya APA

Perry, J, W. et al (Canada : Cengage lea). Laboratory manual for human biology: 2nd-ed . Canada : Cengage learning, 201: Canada : Cengage learning, 2012.

Gaya MLA

Perry, James, W.. et al. "Laboratory manual for human biology: 2nd-ed". Canada : Cengage learning, 201: Canada : Cengage learning, 2012, Canada : Cengage lea. Text.