Cita APA (7th ed.)

Pineda, E. L. (2000). Obligations and contracts. Central Professional Books.

Cita Chicago (17th ed.)

Pineda, Ernesto L. Obligations and Contracts. Quezon City: Central Professional Books, 2000.

Cita MLA (9th ed.)

Pineda, Ernesto L. Obligations and Contracts. Central Professional Books, 2000.