Cita APA

Julivert, M. A., & Julivert, M. A. (1993). The fascinating world of frogs and toads. New York, New York: Barron's.

Citación estilo Chicago

Julivert, Maria Angels, y Maria Angels Julivert. The Fascinating World of Frogs and Toads. New York, New York: Barron's, 1993.

Cita MLA

Julivert, Maria Angels, y Maria Angels Julivert. The Fascinating World of Frogs and Toads. New York, New York: Barron's, 1993.