APA (7th ed.) Citation

Costigan, G. P. (1921). Cases on the law of contracts. Callaghan.

Chicago Style (17th ed.) Citation

Costigan, George Purcell. Cases on the Law of Contracts. Chicago: Callaghan, 1921.

MLA (9th ed.) Citation

Costigan, George Purcell. Cases on the Law of Contracts. Callaghan, 1921.

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