APA (7th ed.) Citation

Watcyn-Jones, P., & Allsop, J. (1990). Test your prepositions. Penguin Books.

Chicago Style (17th ed.) Citation

Watcyn-Jones, Peter, and Jake Allsop. Test Your Prepositions. London: Penguin Books, 1990.

MLA (9th ed.) Citation

Watcyn-Jones, Peter, and Jake Allsop. Test Your Prepositions. Penguin Books, 1990.

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