MLA

W., and A. K. Johnston Limited. Europe. A. J. Nystrom, 0AD. https://collections.library.yale.edu/catalog/15826757.

APA, 6th edition

W., & Limited, A. K. J. (0 C.E.). Europe. [Maps]. A. J. Nystrom, https://collections.library.yale.edu/catalog/15826757.