Cita APA

Barnhart, C. L., & Barnhart, R. K. (1994). The world book dictionary. World book.

Citación estilo Chicago

Barnhart, Clarence L., and Robert K. Barnhart. The World Book Dictionary. Chicago: World book, 1994.

Cita MLA

Barnhart, Clarence L., and Robert K. Barnhart. The World Book Dictionary. World book, 1994.