Cite

The border areas: Austria, Hungary, Czechoslovakia [cartographic material] / R & A, IRIS.

MLA

of State. Interim Research, United States. Department, et al. The Border Areas: Austria, Hungary, Czechoslovakia [Cartographic Material] / R & A, IRIS. Reproduction Branch, SSU, 1945. https://collections.library.yale.edu/catalog/15497837.

APA, 6th edition

of State. Interim Research, U. S. D., Research, I. S., & Branch, A. (1945). The border areas: Austria, Hungary, Czechoslovakia [cartographic material] / R & A, IRIS. [Maps]. Reproduction Branch, SSU, https://collections.library.yale.edu/catalog/15497837.