Delano, H. L. (1991). Presque Isle State Park, Erie County: A dynamic interface of water and land. [Harrisburg, Pa.]: Commonwealth of Pennsylvania, Department of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey and Bureau of State Parks.

Delano, Helen L. Presque Isle State Park, Erie County: A Dynamic Interface of Water and Land. [Harrisburg, Pa.]: Commonwealth of Pennsylvania, Department of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey and Bureau of State Parks, 1991.

Delano, Helen L. Presque Isle State Park, Erie County: A Dynamic Interface of Water and Land. [Harrisburg, Pa.]: Commonwealth of Pennsylvania, Department of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey and Bureau of State Parks, 1991.