00608nam a22001937a 4500 BD-DhUL 20140820101909.0 140820s1940 xxua|||| |||| 001 0 eng d BD-DhUL BD-DhUL 500 WAU Watkins, Ralph K. Understanding science : science in our modern world / Ralph K. Watkins and Winfred Perry. New York : Macmillan, 1940 (1942 printing ). v., maps : ill. ; 22cm. Includes bibliographical references and index. Science Perry, Winifred. ddc BK 4243 4243 0 0 ddc 0 500_000000000000000_WAU 0 NFIC 7590 DUSL DUSL GEN 1956-02-07 Gift 500 WAU 86896 2014-08-20 2014-08-20 BK