Cita APA

Time-Life Books, Time-Life Books, & Time-Life Books. (1971). Special problems. New York: Time Life Books.

Citación estilo Chicago

Time-Life Books, Time-Life Books, y Time-Life Books. Special Problems. New York: Time Life Books, 1971.

Cita MLA

Time-Life Books, Time-Life Books, y Time-Life Books. Special Problems. New York: Time Life Books, 1971.

Precaución: Estas citas no son 100% exactas.