APA aipamena

De Leon, H. S., & De Leon, H. M. J. (2019). Comments and cases on obligations and contracts (Seventh edition.). Rex Book Store.

Chicago Style aipamena

De Leon, Hector S., and Hector M. Jr De Leon. Comments and Cases on Obligations and Contracts. Seventh edition. Manila: Rex Book Store, 2019.

MLA aipamena

De Leon, Hector S., and Hector M. Jr De Leon. Comments and Cases on Obligations and Contracts. Seventh edition. Rex Book Store, 2019.