Austria, Salvador E. Fundamentals of obligations and contracts / by Salvador E. Austria, Timoteo B. Aquino - 2nd ed. - Quezon City, Philippines : Central Book Supply, 2006 - vi, 302 p. ; 23 cm. ISBN: 9789716914764 RM96.20 Subjects--Topical Terms: Obligations (Law)--PhilippinesContracts--Philippines