APA (7 वां संस्करण) प्रशस्ति पत्र

Torres, J. P. (1981). Obligations and contracts: With introduction to law (8th ed.). Booksellers.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Torres, Justo P. Obligations and Contracts: With Introduction to Law. 8th ed. Manila: Booksellers, 1981.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Torres, Justo P. Obligations and Contracts: With Introduction to Law. 8th ed. Booksellers, 1981.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.