Calhoun, J., & Bracken, J. (1983). An Index of Publisher Quality for the Academic Library. College and Research Libraries. https://oaks.kent.edu/node/3172
Calhoun, John, and James Bracken. 1983. “An Index of Publisher Quality for the Academic Library”. College and Research Libraries. https://oaks.kent.edu/node/3172.
Calhoun, J., and J. Bracken. An Index of Publisher Quality for the Academic Library. College and Research Libraries, 1 May 1983, https://oaks.kent.edu/node/3172.