APA način citiranja

Petroski, H. (1992). The pencil: A history of design and circumstance. New York: Alfred A. Knoff.

Čikaški stil citiranja

Petroski, Henry. The Pencil: A History of Design and Circumstance. New York: Alfred A. Knoff, 1992.

MLA način citiranja

Petroski, Henry. The Pencil: A History of Design and Circumstance. New York: Alfred A. Knoff, 1992.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.