TY  - BOOK
AU  - Heathfield,David F.
TI  - Macmillan studies in economics: : production functions
AV  - ECO PAM HB41.H4 
PY  - 1953///
CY  - New York
PB  - MacMillan
KW  - Macmillan studies in economics
KW  - Input, Output analysis
ER  -