Map bulletin no. 1 / by E.W. Hilgard ; Northern Transcontinental Survey, Agricultural Department.
MLA
Dept, Northern Transcontinental Survey. Agricultural. Map Bulletin No. 1 / by E.W. Hilgard ; Northern Transcontinental Survey, Agricultural Department. Julius Bien & Co., 1883. https://collections.library.yale.edu/catalog/15821691.
APA, 6th edition
Dept, N. T. S. A. (1883). Map bulletin no. 1 / by E.W. Hilgard ; Northern Transcontinental Survey, Agricultural Department. [Maps]. Julius Bien & Co., https://collections.library.yale.edu/catalog/15821691.