TY  - BOOK
AU  - Hopfen,Hans Joachim
TI  - Farm implements for arid and tropical regions
AV  - S401.U6 A13 no. 91
U1  - 631.3 
PY  - 1969///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
KW  - Agricultural implements
N1  - Includes bibliographical references
ER  -