Search results for: De Ong, E. R. (Elmer Ralph), 1882-1966

Showing 1 - 3 results of 3 Refine Results
  1. 1

    Insect, disease and weed control

    Authors: De Ong, E. R. (Elmer Ralph), 1882-1966
    Published: Chemical Publishing Co., 1972
    Physical Description: 370 pages : illustrations ; 21 cm
    Book
  2. 2

    Chemistry and uses of insecticides.

    Authors: De Ong, E. R. (Elmer Ralph), 1882-1966
    Published: Reinhold Pub. Corp., 1948
    Physical Description: viii, 345 pages : illustrations ; 24 cm
    Book
  3. 3

    Chemical and natural control of pests

    Authors: De Ong, E. R. (Elmer Ralph), 1882-1966
    Published: Reinhold Pub. Corp., 1960
    Physical Description: viii, 244 pages : illustrations ; 24 cm
    Book