'Proceedings of a symposium conducted by the School of Forest Resources and the Institute for Research on Land and Water Resources, the Pennsylvania State University ... [held March 21 to 23, 1977, in Philadelphia]' - half title page verso.
Utilization of municipal sewage effluent and sludge on forest and disturbed land. ISBN 0271002050. Published by Pennsylvania State University Press in 1979. Publication and catalogue information, links to buy online and reader comments.