00645nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067082002100076100002600097245012000123260000800243500012900251650007500380700002000455Para_2591CHAP220125s1917    xx            000 0 und d  a201143  cCHAP  aPA-C 595.752 B44  aBaker, Arthur Challen  aA further contribution to the study of eriosoma pyricola, the woolly pear aphis  /c A. C. Baker and W. M. Davidson  a:b  aSobretiro de: Journal of Agricultural Research 10 (2): 65-74,1917. Encuadernado con: Rosy apple aphis / by A. C. Baker 70-32  aAfididos x Colecciones de escritos  Eriosoma pyricola  Pera x plagas  aDavidson, W. M.