Environmental guidelines survey : update 1988 : an analysis of environmental procedures and guidelines governing development aid 1988
The safe disposal of hazardous wastes : the special needs and problems of developing countries 1989 Batstone, Roger | Smith, James E. | Wilson, David |
Field guide to wildlife diseases. Volume 1. General field procedures and diseases of migratory birds 1987 Friend, Milton |
Procedures for developing an environmental education curriculum : a discussion guide for Unesco training seminars on environmental education 1986 Hungerford, Harold R. | Peyton, Robert Ben |