Cita APA (7th ed.)

De Leon, H. S. (2021). The law on obligations and contracts (12th ed.). Rex Book Store.

Cita Chicago (17th ed.)

De Leon, Hector S. The Law on Obligations and Contracts. 12th ed. Manila, Phils: Rex Book Store, 2021.

Cita MLA (9th ed.)

De Leon, Hector S. The Law on Obligations and Contracts. 12th ed. Rex Book Store, 2021.