TY  - BOOK
AU  - Levenson Albert M
AU  -  Solon Babette S
TI  - Essential price theroy
U1  - X:76, L1 
PY  - 1971///
CY  - New York
PB  - Holf Rinehart and Winston      
KW  - Price
N1  - Published previously as out-line of price theory
ER  -