Sandkull, B. (1968). On product changes and product planning. Swedish Inst. for Administrative Research.
Chicago-Zitierstil (17. Ausg.)Sandkull, Bengt. On Product Changes and Product Planning. Lund: Swedish Inst. for Administrative Research, 1968.
MLA-Zitierstil (9. Ausg.)Sandkull, Bengt. On Product Changes and Product Planning. Swedish Inst. for Administrative Research, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.