Showing results under subject: 'agricultural engineering'

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1927
Abstract: no abstract

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1931
Abstract: no abstract

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1921
Abstract: no abstract

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1939
Abstract: no abstract

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1922
Abstract: no abstract

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1932
Abstract: no abstract

Papers, consisting of communications made to the Massachusetts Society for Promoting Agriculture

Author: Massachusetts Society for Promoting Agriculture.
Publisher:Boston,Trustees of the Society 18061807
Abstract: no abstract

Memoirs of the Philadelphia Society for Promoting Agriculture : containing communications on various subjects in husbandry and rural affairs

Author: Philadelphia Society for Promoting Agriculture.
Publisher:Philadelphia,Johnson Warner 1814
Abstract: no abstract

Memoirs of the Philadelphia Society for Promoting Agriculture : containing communications on various subjects in husbandry and rural affairs

Author: Philadelphia Society for Promoting Agriculture.
Publisher:Philadelphia,Johnson Warner 1811
Abstract: no abstract

Report of the chief of the Bureau of Biological Survey

Author: United States. Bureau of Biological Survey.
Publisher:Washington DC,United States Govt Print Off 1924
Abstract: no abstract
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