APA (7th ed.) Citation

Petroski, H. (1990). The pencil: A history of design and circumstance. Knopf.

Chicago Style (17th ed.) Citation

Petroski, Henry. The Pencil: A History of Design and Circumstance. New York: Knopf, 1990.

MLA (9th ed.) Citation

Petroski, Henry. The Pencil: A History of Design and Circumstance. Knopf, 1990.