APA (7th ed.) Citation

Smith, A., Allen, D. R., & Allen, K. (2004). Survey of the State of Audio Collections in Academic Libraries.

Chicago Style (17th ed.) Citation

Smith, Abby, David Randal Allen, and Karen Allen. Survey of the State of Audio Collections in Academic Libraries. 2004.

MLA (9th ed.) Citation

Smith, Abby, et al. Survey of the State of Audio Collections in Academic Libraries. 2004.