APA (7th ed.) Citation

Coutts, B. E., & Richard, J. B. (1993). Best Reference Sources of 1991.

Chicago Style (17th ed.) Citation

Coutts, Brian E., and John B. Richard. Best Reference Sources of 1991. 1993.

MLA (9th ed.) Citation

Coutts, Brian E., and John B. Richard. Best Reference Sources of 1991. 1993.

Warning: These citations may not always be 100% accurate.