TY  - BOOK
AU  - Ryan,William James Louden
AU  - Pearce,David W.
TI  - Price theory
AV  - HB171.5 .R9 1977
U1  - 338.521 
PY  - 1977///
CY  - New York
PB  - St. Martin's Press
KW  - Microeconomics
N1  - Includes bibliographical references and index
ER  -