Cita APA

Foster, R. J. 1., & Smoley, C. K. 1. (1926). Leveling. Scranton, Pennsylania: International Textbook Company.

Citación estilo Chicago

Foster, Rufus James 1856-, y Constantine Kenneth 1869-1952 Smoley. Leveling. Scranton, Pennsylania: International Textbook Company, 1926.

Cita MLA

Foster, Rufus James 1856-, y Constantine Kenneth 1869-1952 Smoley. Leveling. Scranton, Pennsylania: International Textbook Company, 1926.