APA (7th ed.) Citation

Hearne Brothers, Pamplin, D. R., & Hopkins, D. (1976). Hearne Brothers official polyconic projection map of Washtenaw County, Michigan.

Chicago Style (17th ed.) Citation

Hearne Brothers, Douglas R. Pamplin, and D. Hopkins. Hearne Brothers Official Polyconic Projection Map of Washtenaw County, Michigan. Detroit, 1976.

MLA (9th ed.) Citation

Hearne Brothers, et al. Hearne Brothers Official Polyconic Projection Map of Washtenaw County, Michigan. 1976.