Antzeko izenburuak: Black Book - Chemical Valuation & Margin Trends (December 2002)
- Black Book - Chemical Valuation & Margin Trends (December 1999)
- Black Book - Chemical Valuation & Margin Trends (December 2003)
- Black Book - Chemical Valuation & Margin Trends (December 2000)
- Black Book - Chemical Valuation & Margin Trends (July 2002)
- Black Book - Chemical Valuation & Margin Trends (September 2002)
- Black Book - Chemical Valuation & Margin Trends (November 2002)