Rydzewski, J. R. (1987). irrigation development planning: An introduction for engineers. john and wiley & sons.
Chicago-čujuhus (17. p.)Rydzewski, J. R. Irrigation Development Planning: An Introduction for Engineers. london: john and wiley & sons, 1987.
MLA-čujuhus (9. p.)Rydzewski, J. R. Irrigation Development Planning: An Introduction for Engineers. john and wiley & sons, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.