APA (7th ed.) Citation

Delaware Geological Survey. Open file report. University of Delaware, Delaware Geological Survey.

Chicago Style (17th ed.) Citation

Delaware Geological Survey. Open File Report. Newark: University of Delaware, Delaware Geological Survey.

MLA (9th ed.) Citation

Delaware Geological Survey. Open File Report. University of Delaware, Delaware Geological Survey.

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