TY  - BOOK
AU  - Riseman,David
TI  - Thorotein velen: a critical interpreation 
SN  - 0816492719 :
U1  - 330.1 
PY  - 1953///
CY  - New York
PB  - Seabury Press
KW  - Production functions (Economic theory)
KW  - Economics
N1  - Includes index
ER  -