TY  - BOOK
AU  - Gregg,S.J., Sing, K.S. W.
AU  - x
TI  - Adsorption , surface area and porosity: x`
SN  - x
U1  - 533.14/GRA 
PY  - 1967///
CY  - Lond
PB  - Academic Press
KW  - Gases
N1  - x
ER  -