APA (7th ed.) Citation

Duigon, M. T., Otton, E. G., & Hilleary, J. T. (1981). Lineboro quadrangle--hydrogeology. State of Md., Dept. of Natural Resources, Md. Geological Survey.

Chicago Style (17th ed.) Citation

Duigon, Mark T., E. G. Otton, and John T. Hilleary. Lineboro Quadrangle--hydrogeology. [Baltimore?]: State of Md., Dept. of Natural Resources, Md. Geological Survey, 1981.

MLA (9th ed.) Citation

Duigon, Mark T., et al. Lineboro Quadrangle--hydrogeology. State of Md., Dept. of Natural Resources, Md. Geological Survey, 1981.