00442nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100002100076245004600097260005800143300001000201440004100211650003200252Para_3538CHAP220125s1906 xx 000 0 und d a202062 cCHAP aPenny, Charles L aPetroleum emulsions /c Charles L. Penny aNewark, Delaware :b Agricultural Experiment Station a39 p. aDelaware. Agri. Exp. Sta., Bull.; 75 aPetroĢleo como insecticida