Παραπομπή APA

Firth, F. E. (1969). encyclopaedia of marine resources. Van Nostrand Reinhold Company.

Παραπομπή Chicago Style

Firth, Frank E. Encyclopaedia of Marine Resources. New York: Van Nostrand Reinhold Company, 1969.

Παραπομπή MLA

Firth, Frank E. Encyclopaedia of Marine Resources. Van Nostrand Reinhold Company, 1969.