International Federation of Library Associations and Institutions. Section of Geography and Map Libraries, Carrington, D. K., Grim, R. E., & Wolter, J. A. (1986). World directory of map collections (Second edition.). K.G. Saur.
Citace podle Chicago (17th ed.)International Federation of Library Associations and Institutions. Section of Geography and Map Libraries, David K. Carrington, Ronald E. Grim, a John Amadeus Wolter. World Directory of Map Collections. Second edition. Munchen ; New York: K.G. Saur, 1986.
Citace podle MLA (9th ed.)International Federation of Library Associations and Institutions. Section of Geography and Map Libraries, et al. World Directory of Map Collections. Second edition. K.G. Saur, 1986.
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