APA
Raven P. H., Johnson G. B., . (1996). Biology. Dubuque, IA: Wm. c. Brown Publishers.
Chicago
Raven Peter H, Johnson George B, . 1996. Biology. Dubuque, IA: Wm. c. Brown Publishers.
Harvard
Raven P. H., Johnson G. B., . (1996). Biology. Dubuque, IA: Wm. c. Brown Publishers.
MLA
Raven Peter H, Johnson George B, . Biology. Dubuque, IA: Wm. c. Brown Publishers. 1996.