Smithsonian Institution. Office of the Secretary & Dall, W. H. (1912). New species of landshells from Panama Canal Zone. [publisher not identified].
Chicago Style (17th ed.) CitationSmithsonian Institution. Office of the Secretary and William Healey Dall. New Species of Landshells from Panama Canal Zone. Washington, D.C.: [publisher not identified], 1912.
MLA (9th ed.) CitationSmithsonian Institution. Office of the Secretary and William Healey Dall. New Species of Landshells from Panama Canal Zone. [publisher not identified], 1912.
Warning: These citations may not always be 100% accurate.