Cita APA

Sheen, F. J. 1. The world's first love (4th printing.). New York [etc.]: McGraw-Hill Book Company.

Citación estilo Chicago

Sheen, Fulton J. 1895-1979. The World's First Love. 4th printing. New York [etc.]: McGraw-Hill Book Company.

Cita MLA

Sheen, Fulton J. 1895-1979. The World's First Love. 4th printing. New York [etc.]: McGraw-Hill Book Company.

Precaución: Estas citas no son 100% exactas.