Pickett, T. E. (1972). Guide to common Cretaceous fossils of Delaware. Delaware Geological Survey.
Chicago Style (17th ed.) CitationPickett, Thomas E. Guide to Common Cretaceous Fossils of Delaware. [Newark, Del.]: Delaware Geological Survey, 1972.
MLA (9th ed.) CitationPickett, Thomas E. Guide to Common Cretaceous Fossils of Delaware. Delaware Geological Survey, 1972.
Warning: These citations may not always be 100% accurate.