De Leon, H. S., & De Leon, H. M. J. (2014). Comments and cases on obligations and contracts (Sixth edition.). Rex Book Store.
Cita Chicago Style (17a ed.)De Leon, Hector S., y Hector M. Jr De Leon. Comments and Cases on Obligations and Contracts. Sixth edition. Manila: Rex Book Store, 2014.
Cita MLA (9a ed.)De Leon, Hector S., y Hector M. Jr De Leon. Comments and Cases on Obligations and Contracts. Sixth edition. Rex Book Store, 2014.
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