00570nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100001700076245012500093260005500218300001000273440005700283650002500340700003500365Para_4199CHAP220125s1937    xx            000 0 und d  a202747  cCHAP  aO'kane, W. C  aThe performance of certain contact agents on various plant surfaces  /c by W. C. O'kane, L. C. Glover and W. A Westgate  aDurham, N. H.  :b Agricultural Experiment Station  a22 p.  aNew Hampshire Agri. Exp. Sta. Technical bulletin; 68  aQuímica agrícola  aGlover, L. C.  Westgate, W. A.