Brown, Lester R.
Vital signs 1994 : the trends that are shaping our future / Lester R. Brown, Hal Kane, David Malin Roodman ; with Ed Ayres [et al.] ; editor Linda Starke. — New York : W. W. Norton & Company, [1994]. — CIDIMA. — 160 p. : gráf. ; 24 cm. — ISBN 0-393-31182-1 1. Información ambiental.2. Indicadores ambientales. I. Kane, Hal. II. Roodman, David Malin. III. Ayres, Ed, col.. IV. Starke, Linda, ed..