APA (7th ed.) Citation

Heck, L. W. (1966). Delaware place names. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Heck, L. W. Delaware Place Names. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1966.

MLA (9th ed.) Citation

Heck, L. W. Delaware Place Names. United States Department of the Interior, Geological Survey, 1966.

Warning: These citations may not always be 100% accurate.