Cita APA (7th ed.)

BAY BOOKS SYDNEY. (1972). Encyclopedia of the world animal 15: Otter - platypus. BAY books Sydney.

Cita Chicago (17th ed.)

BAY BOOKS SYDNEY. Encyclopedia of the World Animal 15: Otter - Platypus. Sydney: BAY books Sydney, 1972.

Cita MLA (9th ed.)

BAY BOOKS SYDNEY. Encyclopedia of the World Animal 15: Otter - Platypus. BAY books Sydney, 1972.