Farm implements for arid and tropical regions.
Hopfen, Hans Joachim.
Farm implements for arid and tropical regions. - Rev. ed. - Rome : Food and Agriculture Organization of the United Nations , 1969. - xii, 159 p. : illus. ; 23 cm. - FAO agricultural development paper ; no. 91 .
Includes bibliography [147]-150.
Agricultural implements.--------
631.3 HOP
Farm implements for arid and tropical regions. - Rev. ed. - Rome : Food and Agriculture Organization of the United Nations , 1969. - xii, 159 p. : illus. ; 23 cm. - FAO agricultural development paper ; no. 91 .
Includes bibliography [147]-150.
Agricultural implements.--------
631.3 HOP