Hans Joachim Hopfen
3 known books
newest first
No author bio imported yet.
Books
OpenLibrary works by this author.
Farm implements for arid and trop...
Farm implements for arid and tropical regions
1960
Commerce international de machine...
Commerce international de machines agricoles, 1936
Year unknown
Hans Joachim Hopfen and International Institute of Agriculture
Small Farm Implements
Small Farm Implements
Year unknown
Fetched from OpenLibrary. Some translations may appear as separate works.