APA (7th ed.) Citation

Buttery, L. M., Emory, W. H., & Lenon, R. (1987). Emory maps of 1847 & 1857. Old Maps of the Southwest.

Chicago Style (17th ed.) Citation

Buttery, Lewis M., William H. Emory, and Robert Lenon. Emory Maps of 1847 & 1857. Lampasas, Tex.: Old Maps of the Southwest, 1987.

MLA (9th ed.) Citation

Buttery, Lewis M., et al. Emory Maps of 1847 & 1857. Old Maps of the Southwest, 1987.