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1.	Image from Amazon.com	The Economic Borders Of The State by Helm, Dieter (Ed) Material type: Text Publication details: Oxford Oxford Uni Pr 1992 Availability: Items available for loan: IGIDR (1)Collection, call number: 338.9/Hel. Found in Open Library: Place hold Save to lists
2.	Image from Amazon.com	Competition in regulated industries by Helm, Dieter (ed) Jenkinson, Tim (ed) Material type: Text Publication details: Oxford Oxford Uni Pr 1998 Availability: Items available for loan: IGIDR (1)Collection, call number: 338.473636/HEL. Found in Open Library: Place hold Save to lists
3.	Image from Amazon.com	Climate-change policy by Helm, Dieter (ed) Material type: Text Publication details: Oxford Oxford Uni Pr 2005 Availability: Items available for loan: IGIDR (1)Collection, call number: 363.7387/HEL. Found in Open Library: Place hold Save to lists
4.	Image from Amazon.com	Nature in the balance by Helm, Dieter [ed] Hepburn, Cameron [ed] Material type: Text Publication details: Oxford Oxford Uni Pr 2014 Availability: Items available for loan: IGIDR (1)Collection, call number: 333.95/HEL. Found in Open Library: Place hold Save to lists