APA (7th ed.) Citation

Rasmussen, W. C. (1957). The water resources of northern Delaware. [publisher not identified].

Chicago Style (17th ed.) Citation

Rasmussen, William Charles. The Water Resources of Northern Delaware. Newark, Del.: [publisher not identified], 1957.

MLA (9th ed.) Citation

Rasmussen, William Charles. The Water Resources of Northern Delaware. [publisher not identified], 1957.