Conference on the Ecological Aspects of International Development Warrenton, Conservation Foundation (U.S.), University of Washington. Center for the Biology of Natural Systems, Farvar, M. T., & Milton, J. P. (1973). The careless technology: Ecology and international development: the record of the Conference on the Ecological Aspects of International Development, convened by the Conservation Foundation and the Center for Biology of Natural Systems, Washington University, December 8-11, 1968, Airlie House, Warrenton, Virginia. Tom Stacey Ltd.

Conference on the Ecological Aspects of International Development Warrenton, Conservation Foundation (U.S.), University of Washington. Center for the Biology of Natural Systems, M. Taghi Farvar, agus John Potter Milton. The Careless Technology: Ecology and International Development: The Record of the Conference on the Ecological Aspects of International Development, Convened by the Conservation Foundation and the Center for Biology of Natural Systems, Washington University, December 8-11, 1968, Airlie House, Warrenton, Virginia. London: Tom Stacey Ltd, 1973.

Conference on the Ecological Aspects of International Development Warrenton, et al. The Careless Technology: Ecology and International Development: The Record of the Conference on the Ecological Aspects of International Development, Convened by the Conservation Foundation and the Center for Biology of Natural Systems, Washington University, December 8-11, 1968, Airlie House, Warrenton, Virginia. Tom Stacey Ltd, 1973.