Soil conservation science. (1990). Drainage of agricultural land: A practical hand book for the planning design construction and maintenanace of agricultural drainage system. Scientific Publishers.
Chicago Style aipamenaSoil conservation science. Drainage of Agricultural Land: A Practical Hand Book for the Planning Design Construction and Maintenanace of Agricultural Drainage System. Jodhpur: Scientific Publishers, 1990.
MLA aipamenaSoil conservation science. Drainage of Agricultural Land: A Practical Hand Book for the Planning Design Construction and Maintenanace of Agricultural Drainage System. Scientific Publishers, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.