APA (7 वां संस्करण) प्रशस्ति पत्र

Nolledo, J. N. (1990). The labor code of the philippines as amended (1990 edition.). Rex Book Store.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Nolledo, Jose N. The Labor Code of the Philippines as Amended. 1990 edition. Manila: Rex Book Store, 1990.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Nolledo, Jose N. The Labor Code of the Philippines as Amended. 1990 edition. Rex Book Store, 1990.