Gaya APA
Perry, J, W. et al (USA : Cengage, 2013).
Laboratory manual for non-majors biology, 6th-ed .
Amerika:
USA : Cengage, 2013.
Gaya MLA
Perry, James, W.. et al.
"Laboratory manual for non-majors biology, 6th-ed".
Amerika:
USA : Cengage, 2013,
USA : Cengage, 2013.
Text.