Styl cytowania APA

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

Styl cytowania Chicago

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

Styl cytowania MLA

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