APA ציטוט

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.

ציטוט MLA

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