Ecology and reclamation of devastated land
NATO Advanced Study Institute on the Ecology and Revegetation of Drastically Disturbed Areas1969Pennsylvania State University.
Hutnik, Russell James.
Davis, Grant.
New York London Gordon and Breach,
1973
'Proceedings of a N.A.T.O. Advanced Study Institute on the Ecology and Revegetation of Drastically Disturbed Areas held at the Pennsylvania State University, University Park, Pennsylvania, August 13 to 16, 1969' - title page verso. - In 2 vols
Reclamation of land
Mines and mineral resources