The state water plan :
subbasin 1 : upper Delaware River /
prepared by Office of Resources Management, Bureau of Water Resources Management.

APA Citation

Pennsylvania. Dept. of Environmental Resources. Bureau of Resources Programming. (1983). The state water plan: subbasin 1 : upper Delaware River. Harrisburg, Pa.: The Bureau .

MLA Citation

Pennsylvania. Dept. of Environmental Resources. Bureau of Resources Programming. The State Water Plan: Subbasin 1 : Upper Delaware River. Harrisburg, Pa.: The Bureau , 1983.

Warning: These citations may not always be complete (especially for serials).