APA (7th ed.) Citation

MacDonald, J. (1994). Earth's first steps: Tracking life before the dinosaurs. [Johnson Books].

Chicago Style (17th ed.) Citation

MacDonald, Jerry. Earth's First Steps: Tracking Life Before the Dinosaurs. [Boulder, Colo.]: [Johnson Books], 1994.

MLA (9th ed.) Citation

MacDonald, Jerry. Earth's First Steps: Tracking Life Before the Dinosaurs. [Johnson Books], 1994.

Warning: These citations may not always be 100% accurate.