APA (7th ed.) Citation

Fontaine, R. A., & Nielsen, J. P. (1994). Flood of April 1987 in Maine. USGS Map Distribution.

Chicago Style (17th ed.) Citation

Fontaine, Richard A., and Joseph P. Nielsen. Flood of April 1987 in Maine. Denver, Colo: USGS Map Distribution, 1994.

MLA (9th ed.) Citation

Fontaine, Richard A., and Joseph P. Nielsen. Flood of April 1987 in Maine. USGS Map Distribution, 1994.