TY  - BOOK
TI  - Permanence and durability of the books - V1:  : spot testing for unstable modern book and record papers
T2  - (permanence/durability of the books); 6
AV  - Z247.B3 No.6 
PY  - 1969///
CY  - Richmond, Virginia
PB  - : W.J. Barrow Research Laboratory
KW  - Research report
KW  - Testing
ER  -