The Challenge of diversity Engler, Richard E text New York Harper & Row, publisher 1964 eng xiv, 338 halaman : ilustrasi ; 21 cm by Richrard E. Engler, Jr Indeks Bibliografi : hlm. 315-323 Amerika Serikat - Sejarah Amerika Serikat - Keadaan sosial 973 973 ENG c JKPNPNA 180830 20180830100152 YOGYA000000000048916 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19) ind