De Leon, H. S. (1977). Handbook on insurance and sales, with Insolvency law (1977 ed.). National Book Store.
Cita Chicago Style (17a ed.)De Leon, Hector S. Handbook on Insurance and Sales, with Insolvency Law. 1977 ed. Manila: National Book Store, 1977.
Cita MLA (9a ed.)De Leon, Hector S. Handbook on Insurance and Sales, with Insolvency Law. 1977 ed. National Book Store, 1977.
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