ID:DA02777245
Conn, Harold Joel
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H.J. Conn
New York Agricultural Experiment Station 1921 Technical bulletin / New York State Agricultural Experiment Station no. 83
Available at 1 libraries
New York Agricultural Experiment Station 1919 Technical bulletin / New York State Agricultural Experiment Station no. 67
by H.W. Conn
P. Blakiston's Son c1918 3rd ed., rev. /by Harold Joel Conn
Available at 10 libraries
H. Joel Conn
Department of Agriculture 1917 Technical bulletin / New York State Agricultural Experiment Station no. 60 . Soil flora studies ; 5
Department of Agriculture 1917 Technical bulletin / New York State Agricultural Experiment Station no. 59 . Soil flora studies ; 4
Department of Agriculture 1917 Technical bulletin / New York State Agricultural Experiment Station no. 58 . Soil flora studies ; 3
Department of Agriculture 1917 Technical bulletin / New York State Agricultural Experiment Station no. 57 . Soil flora studies ; 1-2