Buckner, B. C., & McIntyre, M. (1970). Directory of Population Libraries and Information Centers in the United States.
Citazione stile Chigago Style (17a edizione)Buckner, Bates C., e Marilyn McIntyre. Directory of Population Libraries and Information Centers in the United States. 1970.
Citatione MLA (9a ed.)Buckner, Bates C., e Marilyn McIntyre. Directory of Population Libraries and Information Centers in the United States. 1970.
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