Gaya APA

RAVEN, Peter H., Johnson, George B.. (1996). Biology (4 th. ed.). Boston: WCB McGraw-Hill.

Gaya Chicago

RAVEN, Peter H., Johnson, George B.. Biology. 4 th. ed. Boston: WCB McGraw-Hill, 1996. .

Gaya MLA

RAVEN, Peter H., Johnson, George B.. Biology. 4 th. ed. Boston: WCB McGraw-Hill, 1996. .

Gaya Turabian

RAVEN, Peter H., Johnson, George B.. Biology. 4 th. ed. Boston: WCB McGraw-Hill, 1996. .