APA

Adamson J., Adamson G., . (1996). Learn to swim. London: ladybird.

Chicago

Adamson Jean, Adamson Gareth, . 1996. Learn to swim. London: ladybird.

Harvard

Adamson J., Adamson G., . (1996). Learn to swim. London: ladybird.

MLA

Adamson Jean, Adamson Gareth, . Learn to swim. London: ladybird. 1996.