一般注記Area Statistics.
1977 census vol. 1, issued 1981, Vol. 2, issued 1980.
"RC."
Vol. 1 Subject Statistics: Vol. 2 Geographic Area Statistics.
Vol. 1 Subject statistics. Vol. 2 Geographic Area Statistics; consists of 3 parts, part 1 U.S.Summary, Alabama-Indiana; part 2, Iowa-North Carolina; part 3, North Dakota-Wyoming.
"Part of the 1977 economic censuses.
Chiefly statistics.