APA
Alberda, Keulen H. ., Seligman N. G. . & Wit C. T. . (1992). Food from dry lands : An entegrated approach to planning of agricultureal development. : Kluwer Academic Publishers.
Chicago
Alberda, Keulen H, Seligman N G and Wit C T. 1992. Food from dry lands : An entegrated approach to planning of agricultureal development. : Kluwer Academic Publishers.
Harvard
Alberda, Keulen H. ., Seligman N. G. . and Wit C. T. . (1992). Food from dry lands : An entegrated approach to planning of agricultureal development. : Kluwer Academic Publishers.
MLA
Alberda, Keulen H, Seligman N G and Wit C T. Food from dry lands : An entegrated approach to planning of agricultureal development. : Kluwer Academic Publishers. 1992.