Sustaining earth :
Sustaining earth : response to the environmental threat /
edited by D. R. I. Angell, T. D. Comer and M. L. N. Wilkinson.
- London : Macmilan, 1990
- xvii, 226 p. ; 22 cm.
Open access.
0333524926
Environment--Research.
Open access.
0333524926
Environment--Research.