TY  - BOOK
ED  - 
TI  - Rules for descriptive cataloging in the Library of Congress
AV  - Z695.U4735 1949 
PB  - 1949
KW  - Cataloging
KW  - Z
N1  - Supplement . 1949-51 . Washington , 1952; 19 p. ; 26 cm
ER  -