APA (7th ed.) Citation

Byrd, W., Byrd, W., Byrd, W., Byrd, W., Byrd, W., & Byrd, W. (1991). Grounds and variations. Koch.

Chicago Style (17th ed.) Citation

Byrd, William, William Byrd, William Byrd, William Byrd, William Byrd, and William Byrd. Grounds and Variations. München: Koch, 1991.

MLA (9th ed.) Citation

Byrd, William, et al. Grounds and Variations. Koch, 1991.