APA

ORDWAY F. I., . (1975). PICTORIAL GUIDE TO PLANET EARTH. [s.l.]: CRWELL.

Chicago

ORDWAY FREDERICK I, . 1975. PICTORIAL GUIDE TO PLANET EARTH. [s.l.]: CRWELL.

Harvard

ORDWAY F. I., . (1975). PICTORIAL GUIDE TO PLANET EARTH. [s.l.]: CRWELL.

MLA

ORDWAY FREDERICK I, . PICTORIAL GUIDE TO PLANET EARTH. [s.l.]: CRWELL. 1975.