TY  - BOOK
AU  -  Rogin,Leo
TI  - The Meaning And Validity Of Economic Theory: A Historical Approach 
U1  - 330.1 21
PY  - 1956///
CY  - New York
PB  - Harper & Brothers Publishers, 
KW  - Economics
KW  - qrmak
N1  - Includes index
UR  - https://fll.law.cu.edu.eg/fulltext/bks/B13-09356.pdf
ER  -