(1943). The reference function of the library; papers presented before the Library Institute at the University of Chicago, June 29 to July 10, 1942. Edited by Pierce Butler, with a foreword by Louis Round Wilson.
Citazione stile Chigago Style (17a edizione)The Reference Function of the Library; Papers Presented Before the Library Institute at the University of Chicago, June 29 to July 10, 1942. Edited by Pierce Butler, with a Foreword by Louis Round Wilson. 1943.
Citatione MLA (9a ed.)The Reference Function of the Library; Papers Presented Before the Library Institute at the University of Chicago, June 29 to July 10, 1942. Edited by Pierce Butler, with a Foreword by Louis Round Wilson. 1943.
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