APA (7th ed.) Citation

Gray, B. T. (1980). Environmental reconstruction of the Hadar Formation (Afar, Ethiopia). [publisher not identified].

Chicago Style (17th ed.) Citation

Gray, Brett Thomas. Environmental Reconstruction of the Hadar Formation (Afar, Ethiopia). [Place of publication not identified]: [publisher not identified], 1980.

MLA (9th ed.) Citation

Gray, Brett Thomas. Environmental Reconstruction of the Hadar Formation (Afar, Ethiopia). [publisher not identified], 1980.