Cite

Official guide showing the Main Highway System of the Province of Alberta, Canada.

MLA

Official Guide Showing the Main Highway System of the Province of Alberta, Canada. Dept. of Public Works, 0AD. https://collections.library.yale.edu/catalog/15536075.

APA, 6th edition

Official guide showing the Main Highway System of the Province of Alberta, Canada. (0 C.E.). [Maps]. Dept. of Public Works, https://collections.library.yale.edu/catalog/15536075.