Fundamentals of irrigation
Riddolls, A.W.
Fundamentals of irrigation - Christchurch 1954 - 1-5 p. - Fundamentals, Irrigation Canterbury Chamber of Commerce. Agricultural Bulletin No. 300 .
Fundamentals of irrigation - Christchurch 1954 - 1-5 p. - Fundamentals, Irrigation Canterbury Chamber of Commerce. Agricultural Bulletin No. 300 .