Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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