Gaya APA

Fairbridge, R, W. (1979). The encyclopedia of paelontology ( Encyclopedia of earth sciences vol. VI1 ) . USA: Stroudburgs : Dowden, Hutchinson & Ross, Inc.,.

Gaya MLA

Fairbridge, Rhodes, W. "The encyclopedia of paelontology ( Encyclopedia of earth sciences vol. VI1 )". USA: Stroudburgs : Dowden, Hutchinson & Ross, Inc.,, 1979. Text.