APA (7 वां संस्करण) प्रशस्ति पत्र

Quadra, G. Q. (1980). Trends of National Labor Relations Commission (NLRC) decisions. Rex Book Store.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Quadra, Geronimo Q. Trends of National Labor Relations Commission (NLRC) Decisions. Manila: Rex Book Store, 1980.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Quadra, Geronimo Q. Trends of National Labor Relations Commission (NLRC) Decisions. Rex Book Store, 1980.