00629nam a22001817a 4500 20211212170018.0 211212b1981 usa||||| |||| 00| 0 eng d 0395307694 BD-DhBPA BD-DhBPA 305.23 WEC 1981 Welton, David A. Children and Their World: Strategies for Teaching Social Studies / Welton, David A. & John T. Mallan Boston : Houghton Mifflin Company , 1981. 492 p. ; : ill. , 23 cm. Include Bibliographical References & Index. Young People in the World 148940 ddc BK 53337 53337 0 0 ddc 0 0 DRPATC DRPATC GEN 2021-12-12 0 305.23 WEC 1981 DH13787 2021-12-12 00:00:00 2021-12-12 BK