Johnston, C. N. (1952). Irrigation pumps: Their selection and use. Berkeley, Calif. : College of Agriculture, University of California.
Citação do estilo Chicago (17ª ed.)Johnston, C. N. Irrigation Pumps: Their Selection and Use. Berkeley, Calif. : College of Agriculture, University of California, 1952.
Citação MLA (8ª ed.)Johnston, C. N. Irrigation Pumps: Their Selection and Use. Berkeley, Calif. : College of Agriculture, University of California, 1952.
Citação IICA/CATIEJohnston, C. N. 1952. Irrigation pumps: Their selection and use. Berkeley, Calif. : College of Agriculture, University of California.