1. Montréal Protocol on substances that deplete the ozone layer, final act,1987
2. The alternative refrigerant dilemma for fefrigerantr-freezers: truth or consequences;Vineyard;ASHRAE Tech Data Bull,1991
3. Public Law 100-12,1987
4. CFC alternatives for thermal insulation foams;Shankland,1989
5. National energy impacts of CFC alternatives in heating, air-conditioning, and refrigeraning equipment and foam insulation;Fisher;ASHRAE Tech Data Bull,1990