The ground water program for Pennsylvania.
APA Citation
Pennsylvania. Bureau of Topographic and Geologic Survey. (1956). The ground water program for Pennsylvania. [Harrisburg]: Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey.
MLA Citation
Pennsylvania. Bureau of Topographic and Geologic Survey. The Ground Water Program for Pennsylvania. [Harrisburg]: Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey, 1956.
Warning: These citations may not always be complete (especially for serials).