Heaton, G., & Repetto, R. (1991). Transforming technology: An agenda for environmentally sustainable growth in the 21st century. World Resources Institute.
Cita Chicago (17th ed.)Heaton, George, i Robert Repetto. Transforming Technology: An Agenda for Environmentally Sustainable Growth in the 21st Century. Washington, D.C: World Resources Institute, 1991.
Cita MLA (9th ed.)Heaton, George, i Robert Repetto. Transforming Technology: An Agenda for Environmentally Sustainable Growth in the 21st Century. World Resources Institute, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.