Ahmad, Nazir
Designing low cost tube wells for East Pakistan / Nazir Ahmad - Lahore : PAAS , 1961 - 240-249p. ; 24 cm. - Reprinted from Pakistan Journal of Science, Vol. 13, No. 5, September, 1961 .
Agriculture
Tubewells
Irrigation
631.7 / AHM-6
Designing low cost tube wells for East Pakistan / Nazir Ahmad - Lahore : PAAS , 1961 - 240-249p. ; 24 cm. - Reprinted from Pakistan Journal of Science, Vol. 13, No. 5, September, 1961 .
Agriculture
Tubewells
Irrigation
631.7 / AHM-6