APA (7th ed.) Citation

Nigel Watts & Anna C. Leplar. (1996). The Penknife. Collins Educational.

Chicago Style (17th ed.) Citation

Nigel Watts and Anna C. Leplar. The Penknife. London: Collins Educational, 1996.

MLA (9th ed.) Citation

Nigel Watts and Anna C. Leplar. The Penknife. Collins Educational, 1996.

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