linsel, H., & sack, K. (1965). theoretical problems of industrial planning. National Planning Institute.
Style de citation Chicago (17e éd.)linsel, H., et K. sack. Theoretical Problems of Industrial Planning. cairo: National Planning Institute, 1965.
Style de citation MLA (9e éd.)linsel, H., et K. sack. Theoretical Problems of Industrial Planning. National Planning Institute, 1965.