Cite

Official road map Alberta Canada.

MLA

of Public Works, Alberta. Dept. Official Road Map Alberta Canada. Dept. of Public Works, 1939. https://collections.library.yale.edu/catalog/15536076.

APA, 6th edition

of Public Works, A. D. (1939). Official road map Alberta Canada. [Maps]. Dept. of Public Works, https://collections.library.yale.edu/catalog/15536076.