1. An Action Plan for the Human Environment 1972
2. National Research Council, Environmental Monitoring: 23 (1977).
3. INT ENV REP CURR REP 1 3: 60 (1978).
4. INT ENV REP CURR REP 1 5: 143 (1978).
5. Report of the Intergovernmental Meeting of Mediterranean Coastal States on the Blue Plan 1977