linsel, H., & sack, K. (1965). theoretical problems of industrial planning. National Planning Institute.
Chicago-Zitierstil (17. Ausg.)linsel, H., und K. sack. Theoretical Problems of Industrial Planning. cairo: National Planning Institute, 1965.
MLA-Zitierstil (9. Ausg.)linsel, H., und K. sack. Theoretical Problems of Industrial Planning. National Planning Institute, 1965.