Showing 1 - 12 results of 12 for search 'Hughes, Harold A.', query time: 0.17s Refine Results
  1. 1
    Conservation farming /
    by Hughes, Harold A.
    Published 1980
    Book
  2. 2
    Crop chemicals /
    by Hughes, Harold A.
    Published 1976
    Book
  3. 3
    Small-wind power systems /
    by Hughes, Harold A.
    Published 1978
    Microform Book
  4. 4
    Will sunshine heat your broiler house? /
    by Hughes, Harold A.
    Published 1970
    Microform Book
  5. 5
    Optimization of a solar-assisted floor heating system for swine /
    by Hughes, Harold A.
    Published 1976
    Microform Book
  6. 6
    Requirements for production of selected cellulose crops /
    by Hughes, Harold A.
    Published 1978
    Microform Book
  7. 7
    Methane, the economic question /
    by Hughes, Harold A.
    Published 1975
    Microform Book
  8. 8
    Energy for biomass crop production /
    by Hughes, Harold A.
    Published 1979
    Microform Book
  9. 9
    Energy management during brooding /
    by Hughes, Harold A.
    Published 1977
    Microform Book
  10. 10
    Energy savings in an insulated-fan ventilated broiler house /
    by Hughes, Harold A.
    Published 1975
    Microform Book
  11. 11
    Methane production from livestock wastes /
    by Collins, E. R. (Edmond R.)
    Published 1976
    Other Authors: “...Hughes, Harold A....”
    Microform Book
  12. 12
    Solar energy collection with lagoon storage for heat pumps /
    by Vaughan, D. H.
    Published 1976
    Other Authors: “...Hughes, Harold A....”
    Microform Book
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