APA (7th ed.) Citation

Knowles, R. (2005). 150 contractual problems and their solutions. Blackwell Pub..

Chicago Style (17th ed.) Citation

Knowles, Roger. 150 Contractual Problems and Their Solutions. Oxford ; Malden, MA: Blackwell Pub., 2005.

MLA (9th ed.) Citation

Knowles, Roger. 150 Contractual Problems and Their Solutions. Blackwell Pub., 2005.

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