APA (7th ed.) Citation

Van Beers, W. F. J. (1979). Some nomographs for the calculation of drain spacings. ILRI.

Chicago Style (17th ed.) Citation

Van Beers, W. F. J. Some Nomographs for the Calculation of Drain Spacings. Wageningen: ILRI, 1979.

MLA (9th ed.) Citation

Van Beers, W. F. J. Some Nomographs for the Calculation of Drain Spacings. ILRI, 1979.