Blueprint for a green economy : David Pearce, Anil Markandya and Edward B. Barbier. Earthscan, London, Great Britain, 1989. 192 pp., [UK pound]6.95. ISBN 1 85383 066 6.: Blueprint 2: Greening the World Economy : David Pearce (Editor). Earthscan, London, Great Britain, 1991. 232 pp. [UK pound]7.95. ISBN 1 85383 076 3.