Cita APA

Hayward, J. (1987). Lovebirds and their colour mutations. [S.l.]: New York.

Citación estilo Chicago

Hayward, Jim. Lovebirds and Their Colour Mutations. [S.l.]: New York, 1987.

Cita MLA

Hayward, Jim. Lovebirds and Their Colour Mutations. [S.l.]: New York, 1987.