1. Industrial Marketing;Alexander,1967
2. The Industrial Purchasing Decision From the Marketer's Viewpoint;Bird;Proceedings: Conf. A.M.A.,1975
3. Industrial Buying: A Method of Planning for Contract Negotiations;Bird;J. Econom. Bus.,1974
4. The Industrial Buying Decision;Brand,1972
5. How British Industry Buys;Buckner,1967