Full Record Check this checkbox to mark or unmark the current record AUTHOR Tivy, Joy. TITLE Human impact on the ecosystem / Joy Tivy, Greg O'Hare. IMPRINT Edinburgh : Oliver & Boyd, c1981. DESCRIPTION 243 p. ; 24 cm. DISCIPLINE Geography. OTHER AUTHOR O'Hare, Greg. ISBN 0050032038. Location Call Number Status Eng Coll 910 TIV Processing