Cita APA

Friend, A. M. (1990). Economics, ecology and sustainable development are they compatible. Canada: Institute for Research of Environment and Economy.

Citación estilo Chicago

Friend, Anthony M. Economics, Ecology and Sustainable Development Are They Compatible. Canada: Institute for Research of Environment and Economy, 1990.

Cita MLA

Friend, Anthony M. Economics, Ecology and Sustainable Development Are They Compatible. Canada: Institute for Research of Environment and Economy, 1990.