Mass Retailing Institute
K. H. Henksmeier
Boise Cascade Center for Community Development
Organization for European Economic Cooperation. European Productivity Agency
Unknown Author
Müller, Heinz Dipl.-Kfm. Dr.
Corinna Jorde
Economisch Instituut voor het Midden- en Kleinbedrijf.
Karel Semelka
Werner Prendel
Institut für Selbstbedienung.
Hans Werner Holub
Ḥusayn Muḥammad ʻAlī ʻAlawī
National Cash Register Company. Market Research Department
Harwell, Edward M.
Konstantin Vasil'evich Konovalov