APA (7th ed.) Citation

Waddell, M. (1990). My Great Grandpa. Walker Books.

Chicago Style (17th ed.) Citation

Waddell, Martin. My Great Grandpa. London: Walker Books, 1990.

MLA (9th ed.) Citation

Waddell, Martin. My Great Grandpa. Walker Books, 1990.

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