APA (7th ed.) Citation

Pritchard, D. W., & Gardner, G. B. (1974). Hydrography of the Chesapeake and Delaware canal. Chesapeake Bay Institute, Johns Hopkins University.

Chicago Style (17th ed.) Citation

Pritchard, Donald W., and G. B. Gardner. Hydrography of the Chesapeake and Delaware Canal. [Baltimore, Md.]: Chesapeake Bay Institute, Johns Hopkins University, 1974.

MLA (9th ed.) Citation

Pritchard, Donald W., and G. B. Gardner. Hydrography of the Chesapeake and Delaware Canal. Chesapeake Bay Institute, Johns Hopkins University, 1974.