1980 census of population and housing.

Supercedes preliminary counts published with title: 1980 census of population and housing: preliminary population and housing unit counts.

Human rights in Chile : hearings before the Subcommittees on Inter-American Affairs and on International Organizations and Movements of the Committee on Foreign Affairs, House of Representatives, Ninety-third Congress, second session ...

Subcommittees' names in reverse order in pt. 2.

Guatemala earthquake : hearing before the Subcommittee on Western Hemisphere Affairs and Subcommittee on Foreign Assistance of the Committee on Foreign Relations, United States Senate, Ninety-fourth Congress, second session ... February 16, 1976.

Mode of access: Internet.

An assessment of ozone and chlorine dioxide technologies for treatment of municipal water supplies /

Mode of access: Internet.

Environmental regulations and technology : use and disposal of municipal wastewater sludge /

At head of title: Technology transfer, EPA 625/10-84-003.