APA (7th ed.) Citation

Nutter, L. J. (1977). Bel Air quadrangle, hydrogeology. State of Maryland, Dept. of Natural Resources, Maryland Geological Survey.

Chicago Style (17th ed.) Citation

Nutter, Larry J. Bel Air Quadrangle, Hydrogeology. Baltimore: State of Maryland, Dept. of Natural Resources, Maryland Geological Survey, 1977.

MLA (9th ed.) Citation

Nutter, Larry J. Bel Air Quadrangle, Hydrogeology. State of Maryland, Dept. of Natural Resources, Maryland Geological Survey, 1977.