TY - BOOK AU - Mann, Margaret, AU - ED - ED - ED - American library association. ED - SN - 2 PY - 1943///]46 CY - [Chicago, IL PB - American Library Association KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Cataloging N1 - References at end of most of the chapters; 5 ER -