Cita APA (7th ed.)
Kristal, F. A. (1940). Pumps: Types, selection, installation, operation, and Maintenance (1a ed.). McGraw-Hill Book Company, Inc..
Cita Chicago (17th ed.)
Kristal, Frank A. Pumps: Types, Selection, Installation, Operation, and Maintenance. 1a ed. New York: McGraw-Hill Book Company, Inc., 1940.
Cita MLA (9th ed.)
Kristal, Frank A. Pumps: Types, Selection, Installation, Operation, and Maintenance. 1a ed. McGraw-Hill Book Company, Inc., 1940.
Atenció: Aquestes cites poden no estar 100% correctes.