Cita APA

Gilbert Chris & Laurie Williams. (1985). The A B C's of 1 2 3. B.P.B.

Citación estilo Chicago

Gilbert Chris y Laurie Williams. The A B C's of 1 2 3. New Delhi: B.P.B, 1985.

Cita MLA

Gilbert Chris y Laurie Williams. The A B C's of 1 2 3. B.P.B, 1985.