APA (7th ed.) Citation

Alconera, V. P. (2009). Obligations & contracts (2009 ed.). Central Book Supply.

Chicago Style (17th ed.) Citation

Alconera, Virgilio P. Obligations & Contracts. 2009 ed. Quezon City: Central Book Supply, 2009.

MLA (9th ed.) Citation

Alconera, Virgilio P. Obligations & Contracts. 2009 ed. Central Book Supply, 2009.

Warning: These citations may not always be 100% accurate.