APA

Association of American Geographers, . (1959). Monograph series of the Association of American Geographers. Chicago, Ill: [Verlag nicht ermittelbar].

Chicago

Association of American Geographers, . 1959. Monograph series of the Association of American Geographers. Chicago, Ill: [Verlag nicht ermittelbar].

Harvard

Association of American Geographers, . (1959). Monograph series of the Association of American Geographers. Chicago, Ill: [Verlag nicht ermittelbar].

MLA

Association of American Geographers, . Monograph series of the Association of American Geographers. Chicago, Ill: [Verlag nicht ermittelbar]. 1959.