1. The Crisis in Supply Markets: Developing a Strategy for Resources;Taylor,1975
2. The Purchasing Executive's Adpatation to the Product Life Cycle;Berenson;Journal of Purchasing,1967
3. The Product Life Cycle in Formulating Purchasing Strategy;Rink;Industrial Marketing Management,1976
4. Harold W. Fox PLC: Pattern for Purchasing Purchasing 1973 57
5. David H. Farmer “Corporate Planning and Procurement: A Checklist Guide” D. H. Farmer B. Taylor cit 16