De Leon, Hector S., author. The law on obligations and contracts / Hector S. De Leon, Hector M. De Leon, Jr. - Twelfth edition. - Manila : Rex Book Store, c2021. - xxii, 453 pages ; 23 cm Includes bibliographical references. In English text. ISBN: 9786210404302 Subjects--Topical Terms: Obligations (Law)--Philippines.Contracts--Philippines. LC Class. No.: F KF 5625.2 / D45 2021