APA (7th ed.) Citation

Greenblatt, M., Lemmo, P. S., Miriam Greenblatt, Stanley S. Seaberg, & Seaberg, S. S. (1989). Human Heritage: A world history. Merrill.

Chicago Style (17th ed.) Citation

Greenblatt, Miriam, Peter S. Lemmo, Miriam Greenblatt, Stanley S. Seaberg, and Stanley S. Seaberg. Human Heritage: A World History. Columbus, Ohio [u.a.]: Merrill, 1989.

MLA (9th ed.) Citation

Greenblatt, Miriam, et al. Human Heritage: A World History. Merrill, 1989.