TY  - BOOK
AU  - Berger Peter L
AU  -  Luckmann Thomas
TI  - Social construction of reality:  A treatise in the sociology of knowledge   
SN  - 0385058985
U1  - R2, K7/TD 
PY  - 1967///
CY  - London
PB  - Penguin Press U. K.       
KW  -  Philosophy
KW  - Epistemology
ER  -