APA

Colbert E. H., Germann J. C., . (1951). The dinosaur book: the ruling reptiles and their relatives. New York, N.Y: McGraw-Hill for the American museum of natural history.

Chicago

Colbert Edwin Harris, Germann John C, . 1951. The dinosaur book: the ruling reptiles and their relatives. New York, N.Y: McGraw-Hill for the American museum of natural history.

Harvard

Colbert E. H., Germann J. C., . (1951). The dinosaur book: the ruling reptiles and their relatives. New York, N.Y: McGraw-Hill for the American museum of natural history.

MLA

Colbert Edwin Harris, Germann John C, . The dinosaur book: the ruling reptiles and their relatives. New York, N.Y: McGraw-Hill for the American museum of natural history. 1951.