Helmers, F. L. C. H. (1977). Project planning and income distribution: A study with particular reference to developing countries. Veenman & Zonen.
Chicago-Zitierstil (17. Ausg.)Helmers, Frederik Leslie Cornelis Hazlewood. Project Planning and Income Distribution: A Study with Particular Reference to Developing Countries. Wageningen: Veenman & Zonen, 1977.
MLA-Zitierstil (9. Ausg.)Helmers, Frederik Leslie Cornelis Hazlewood. Project Planning and Income Distribution: A Study with Particular Reference to Developing Countries. Veenman & Zonen, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.