APA (7e ed.) Bronvermelding

Philippines & Nolledo, J. N. (1980). The Philippine law on obligations and contracts explained (9th ed.). National Book Store.

Chicago (17e ed.) Bronvermelding

Philippines en Jose N. Nolledo. The Philippine Law on Obligations and Contracts Explained. 9th ed. [Manila: National Book Store, 1980.

MLA (9e ed.) Bronvermelding

Philippines en Jose N. Nolledo. The Philippine Law on Obligations and Contracts Explained. 9th ed. National Book Store, 1980.