linsel, h., & sack, k. (1965). theoretical problems of industrial planning. the institute of national planning.
Chicago-Zitierstil (17. Ausg.)linsel, h., und k. sack. Theoretical Problems of Industrial Planning. cairo: the institute of national planning, 1965.
MLA-Zitierstil (9. Ausg.)linsel, h., und k. sack. Theoretical Problems of Industrial Planning. the institute of national planning, 1965.