1. The elimination of waste emissions from oil and gas production operations;Callaghan,1991
2. Environmental auditing in European operations;Whitehead,1991
3. The EPA risk management program regulations and their applicability to oil and gas operations;Freedman,1995
4. The new role of HSE in chemical product development;Purinton,1996
5. Development practices and achievements for reducing the risk of oilfield chemicals;Hill,2003