sack, K., & linsel, h. (1966). planning of technical progress in industry: Planning of temporal progress of research and development. the institute of national planning.
Čikaški stil citiranja (17. izdanje)sack, Kurt, i hermann linsel. Planning of Technical Progress in Industry: Planning of Temporal Progress of Research and Development. cairo: the institute of national planning, 1966.
MLA način citiranja (9. izdanje)sack, Kurt, i hermann linsel. Planning of Technical Progress in Industry: Planning of Temporal Progress of Research and Development. the institute of national planning, 1966.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.