APA (7e ed.) Bronvermelding

De Leon, H. S. (1977). Handbook on insurance and sales (with insolvency law). National Book Store.

Chicago (17e ed.) Bronvermelding

De Leon, Hector S. Handbook on Insurance and Sales (with Insolvency Law). Manila: National Book Store, 1977.

MLA (9e ed.) Bronvermelding

De Leon, Hector S. Handbook on Insurance and Sales (with Insolvency Law). National Book Store, 1977.