APA (7th ed.) Citation

Whitfield R. P. Robert Parr. (1892). Gasteropoda and Cephalopoda of the Raritan Clays and Greensand marls of New Jersey. Washington, Governmext Printing Office, 1892.

Chicago Style (17th ed.) Citation

Whitfield R. P. Robert Parr. Gasteropoda and Cephalopoda of the Raritan Clays and Greensand Marls of New Jersey. Washington, Governmext Printing Office, 1892, 1892.

MLA (9th ed.) Citation

Whitfield R. P. Robert Parr. Gasteropoda and Cephalopoda of the Raritan Clays and Greensand Marls of New Jersey. Washington, Governmext Printing Office, 1892, 1892.