TY - BOOK TI - New book of knowledge V.13: N SN - 0717205037 U1 - 030 PY - 1972/// CY - New York PB - Grolier Incorporated N1 - Copyright 1971,1970,1969,1968,1967,1966 by Grolier Incorporated,1972,1971,1970,1969 by Grolier Limited ER -