Nolledo, J. N. (1992). Handbook on obligations and contracts for commerce students (Rev. ed.). National Book Store.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNolledo, Jose N. Handbook on Obligations and Contracts for Commerce Students. Rev. ed. Metro Manila: National Book Store, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNolledo, Jose N. Handbook on Obligations and Contracts for Commerce Students. Rev. ed. National Book Store, 1992.
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