00925nam a22002771 4500 3586794 BD-DhUL 20141001121634.0 711124s1966 nyua p 000 0 eng 65019870 DLC DLC DLC BD-DhUL QD42 .L37 540 LET Leach, Royal B. Chemistry / by Royal B. Leach and Galen W. Ewing. Prepared under the direction of Educational Science Division, U.S. Industries, inc. 1st ed. Garden City, New York : Doubleday, 1966. v, 400 p. : ill. ; 21cm. A Tutor text Includes index. Chemistry Programmed instruction. Ewing, Galen Wood, 1914- joint author. U.S. Industries, inc. Educational Science Division. 7 cbc orignew u ocip 19 y-gencatlg ddc BK 14147 14147 0 0 ddc 0 540_000000000000000_LET 0 NFIC 25371 DUSL DUSL GEN 1973-07-02 Gift 540 LET A104704 2014-10-01 2014-10-01 BK