San jose scale investigation. IV
Lowe, V.H., Parrott, P.J.
San jose scale investigation. IV - Geneva 1902 - 392-456 p. - Investigation New York Agricultural Experiment Station. Bulletin No. 228 .
San jose scale investigation. IV - Geneva 1902 - 392-456 p. - Investigation New York Agricultural Experiment Station. Bulletin No. 228 .