Rydzewski, J. R. (1987). irrigation development planning: An introduction for engineers. john and wiley & sons.
Lua i Stíl Chicago (17ú heag.)Rydzewski, J. R. Irrigation Development Planning: An Introduction for Engineers. london: john and wiley & sons, 1987.
Lua MLA (9ú heag.)Rydzewski, J. R. Irrigation Development Planning: An Introduction for Engineers. john and wiley & sons, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.