1. CEMAT's sustainable development model Publication: [Strasbourg, France? : CEMAT, 19--] Subject(s): Conservation of Natural ResourcesSocial PlanningSocial Change
2. Kilio cha mama Klilmanjaro Publication: [Tanzania] : POFLEP Kilimanjaro, [19--?] Subject(s): Family Planning ServicesConservation of Natural ResourcesTanzania
3. Animate, protejamos juntos nuestro medio ambiente! Publication: [El Salvador] : Educación Ecologica, ADEMUSA, [19--?] Subject(s): Conservation of Natural ResourcesEcology -- education
