APA (7 वां संस्करण) प्रशस्ति पत्र

Bradford, R. (1993). The state of theory: Ed. by Richard Bradford (1st. publ.). Routledge.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Bradford, Richard. The State of Theory: Ed. by Richard Bradford. 1st. publ. London [u. a.]: Routledge, 1993.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Bradford, Richard. The State of Theory: Ed. by Richard Bradford. 1st. publ. Routledge, 1993.