Wales, A. P., Koesche, G., & Korer, J. (1970). World directory of booksellers: An international guide to booksellers. Alexander P. Wales.
Cita Chicago Style (17a ed.)Wales, Alexander Peter, Gisella Koesche, y Jacqueline Korer. World Directory of Booksellers: An International Guide to Booksellers. London: Alexander P. Wales, 1970.
Cita MLA (9a ed.)Wales, Alexander Peter, et al. World Directory of Booksellers: An International Guide to Booksellers. Alexander P. Wales, 1970.
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