Cita APA

(1990). Effective telephone calling. Chicago, III.: Encyclopaedia Britannica Educational Corp.

Citación estilo Chicago

Effective Telephone Calling. Chicago, III.: Encyclopaedia Britannica Educational Corp, 1990.

Cita MLA

Effective Telephone Calling. Chicago, III.: Encyclopaedia Britannica Educational Corp, 1990.

Precaución: Estas citas no son 100% exactas.