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- [31] LABOR FOR FORESTRY OPERATIONS - ISSUES FOR THE 1990S TRANSACTIONS OF THE ASAE, 1994, 37 (02): : 639 - 645
- [32] ENVIRONMENTAL-HEALTH ISSUES IN THE 1990S SOUTH AFRICAN MEDICAL JOURNAL, 1992, 81 (11): : 536 - 537
- [33] GLOBAL REFUGEE ISSUES AT THE BEGINNING OF THE 1990S CANADIAN GEOGRAPHER-GEOGRAPHE CANADIEN, 1991, 35 (02): : 189 - &
- [34] Issues for the late 1990s and future concerns ONLINE & CDROM REVIEW, 1998, 22 (03): : 213 - 215