APA (7th ed.) Citation

Adamson, G. Topsy and Tim Go to the Zoo. Penguin Company.

Chicago Style (17th ed.) Citation

Adamson, Gareth. Topsy and Tim Go to the Zoo. London: Penguin Company.

MLA (9th ed.) Citation

Adamson, Gareth. Topsy and Tim Go to the Zoo. Penguin Company.

Warning: These citations may not always be 100% accurate.