.Rubin, S. J., & .Graham, T. R. (1982). Environment and trade: The relation of international trade and environmental policy. Allanheld, Osmun.

.Rubin, Seymour J., and Thomas R. .Graham. Environment and Trade: The Relation of International Trade and Environmental Policy. .Totowa, N.J: Allanheld, Osmun, 1982.

.Rubin, Seymour J., and Thomas R. .Graham. Environment and Trade: The Relation of International Trade and Environmental Policy. Allanheld, Osmun, 1982.