APA

Hoffman G. J. E., Howell T. A. E. & Solomon K. H. E.Management of farm irrigation systems. USA: The American Society of Agricultural Engineers, 1990: .

Chicago

Hoffman Glenn J Editor, Howell Terry A Editor and Solomon Kenneth H Editor.Management of farm irrigation systems. USA: The American Society of Agricultural Engineers, 1990: .

Harvard

Hoffman G. J. E., Howell T. A. E. and Solomon K. H. E.Management of farm irrigation systems. USA: The American Society of Agricultural Engineers, 1990: .

MLA

Hoffman Glenn J Editor, Howell Terry A Editor and Solomon Kenneth H Editor.USA: The American Society of Agricultural Engineers, 1990: . .