linsel, H., & sack, K. (1965). theoretical problems of industrial planning. National Planning Institute.
Citace podle Chicago (17th ed.)linsel, H., a K. sack. Theoretical Problems of Industrial Planning. cairo: National Planning Institute, 1965.
Citace podle MLA (9th ed.)linsel, H., a K. sack. Theoretical Problems of Industrial Planning. National Planning Institute, 1965.