University of Chicago. Graduate Library School, Swanson, D. R., & Bookstein, A. (1972). Operations research; implications for libraries: The thirty-fifth annual conference of the Graduate Library School, August 2-4, 1971. University of Chicago Press.
Cita Chicago (17th ed.)University of Chicago. Graduate Library School, Don Richard Swanson, i Abraham Bookstein. Operations Research; Implications for Libraries: The Thirty-fifth Annual Conference of the Graduate Library School, August 2-4, 1971. Chicago: University of Chicago Press, 1972.
Cita MLA (8th ed.)University of Chicago. Graduate Library School, et al. Operations Research; Implications for Libraries: The Thirty-fifth Annual Conference of the Graduate Library School, August 2-4, 1971. University of Chicago Press, 1972.