APA (7th ed.) Citation

De Leon, H. S. (1977). Handbook on sales, agency, and credit transactions (1977 ed.). Printed & exclusively distributed by National Book Store.

Chicago Style (17th ed.) Citation

De Leon, Hector S. Handbook on Sales, Agency, and Credit Transactions. 1977 ed. [Manila]: Printed & exclusively distributed by National Book Store, 1977.

MLA (9th ed.) Citation

De Leon, Hector S. Handbook on Sales, Agency, and Credit Transactions. 1977 ed. Printed & exclusively distributed by National Book Store, 1977.