APA (7th ed.) Citation

Heden, K. E. (1966). Directory of shipwrecks of the Great Lakes. Bruce Humphries Publishers.

Chicago Style (17th ed.) Citation

Heden, Karl E. Directory of Shipwrecks of the Great Lakes. Boston: Bruce Humphries Publishers, 1966.

MLA (9th ed.) Citation

Heden, Karl E. Directory of Shipwrecks of the Great Lakes. Bruce Humphries Publishers, 1966.