TY  - BOOK
TI  - Permanence and durability of the book - II:  : test data of naturally aged papers
T2  - (Permanence/durability of the book); 2
AV  - Z247.B3 No.2 
PY  - 1964///
CY  - Richmond
PB  - : W. J. Barrow Research Laboratory
KW  - Research report
KW  - Testing
KW  - Book industries and trade
KW  - Standards
ER  -