APA (7 वां संस्करण) प्रशस्ति पत्र

EDWARDS, E. O., & BELL, P. W. The theory and measurement of businnes income. University of California.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

EDWARDS, Edgar O., और Philip W. BELL. The Theory and Measurement of Businnes Income. Berkeley: University of California.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

EDWARDS, Edgar O., और Philip W. BELL. The Theory and Measurement of Businnes Income. University of California.