APA (7th ed.) Citation

Gould, S. J. (2002). I have landed: The end of a beginning in natural history. Harmony Books.

Chicago Style (17th ed.) Citation

Gould, Stephen Jay. I Have Landed: The End of a Beginning in Natural History. New York: Harmony Books, 2002.

MLA (9th ed.) Citation

Gould, Stephen Jay. I Have Landed: The End of a Beginning in Natural History. Harmony Books, 2002.