McHale, John. The ecological context. - New York G. Braziller [1970] - 188 p. illus. 26 cm. 920316 Bibliography: p. 175-188. ISBN: 0807605611 LCCN: 77132200 Subjects--Topical Terms: Human ecologyTwenty-first century--Forecasts. LC Class. No.: GF41 / .M3 1970 Dewey Class. No.: 301.3