Singh, Ram Surat.
Soil conservation through people's effort : A pilot experiment in Etawah / Ram Surat Singh. - Lucknow : Planning Research and Action Institute, [...?]. - 33 p. : ill. ; 25 cm. - P. R. A. I. publication, no. 353. .
342 342
Techniques, equipment, materials.
631.4 / S64s
Soil conservation through people's effort : A pilot experiment in Etawah / Ram Surat Singh. - Lucknow : Planning Research and Action Institute, [...?]. - 33 p. : ill. ; 25 cm. - P. R. A. I. publication, no. 353. .
342 342
Techniques, equipment, materials.
631.4 / S64s