De Leon, H. S. (1980). The law on negotiable instruments: With documents of title. Rex Book Store.
Cita Chicago (17th ed.)De Leon, Hector S. The Law on Negotiable Instruments: With Documents of Title. Manila: Rex Book Store, 1980.
Cita MLA (9th ed.)De Leon, Hector S. The Law on Negotiable Instruments: With Documents of Title. Rex Book Store, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.