APA (7 वां संस्करण) प्रशस्ति पत्र

Birk, W. O. (1949). Structural grammar for building sentences. D.C. Heath.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Birk, William Otto. Structural Grammar for Building Sentences. Boston: D.C. Heath, 1949.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Birk, William Otto. Structural Grammar for Building Sentences. D.C. Heath, 1949.