HERSTERMAN, A. (1971). Allocation models and their use in economic planning. D. Reidel.
Cita Chicago (17th ed.)HERSTERMAN, A.R.G. Allocation Models and Their Use in Economic Planning. Dordrecht-Holland: D. Reidel, 1971.
Cita MLA (9th ed.)HERSTERMAN, A.R.G. Allocation Models and Their Use in Economic Planning. D. Reidel, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.