APA (7th ed.) Citation

Hargreaves, R. (1976). Mr. Forgetful. World International Pub.

Chicago Style (17th ed.) Citation

Hargreaves, Roger. Mr. Forgetful. Manchester [England]: World International Pub, 1976.

MLA (9th ed.) Citation

Hargreaves, Roger. Mr. Forgetful. World International Pub, 1976.