Human Materials Production as a Process in the Biosphere Harrison Brown Scientific American, Vol. 223, No. 3, September 1970, 195-208   TO PRINT ⇒  195 196 197 198   TO VIEW ⇒  195 196 197 198   TO PRINT ⇒  200 205 206 208   TO VIEW ⇒  200 205 206 208 110527

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