339.2091724
H478P
           Helmers, F L C H
               Project planning and income distribution \ F L C H Helmers - Boston : Martinus, 1o979.
               295p+tab:ill - Studies in development and planning; v.9 .
                ISBN: 0-89838-010-3

127635
                Subjects: Economic development projects; Income distribution-Developing; Economics-Mathematical models.