Search results for: Havis, John R.

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  1. 1

    Herbicidal properties of petroleum hydrocarbons

    Authors: Havis, John R., 1920-
    Published: Cornell University Agricultural Experiment Station, 1950
    Physical Description: 20 pages : illustrations ; 23 cm.
    Book
  2. 2

    A short course on nursery field and container production

    Published: University of Massachusetts, Cooperative Extension Service, 1978
    Other Authors: “…Havis, John R.…”
    Physical Description: 44 pages : illustrations ; 28 cm
    Book