TY  - BOOK
AU  - Westphal Larry E.
AU  - Tinbergen. J
AU  - Johnston J.
AU  - Jorgenson D.W.
AU  - Waelbroeck J.
TI  - Palnning Investments Wtih Economies Of Scale 
T2  - Contributions To Economic Analysis, 69
SN  - 0720431697
PY  - 1971///
CY  - Amsterdam, London.
PB  - Northe-Holland Publishing Company - Amsterdam 
ER  -