Regions of the United States.
Series: Our working world
Publisher: Science Research Associates
Published: 1973
Place of publication: Chicago
Language: eng
Subjects: Geography -- Study and teaching -- United States.; Social sciences -- Study and teaching.; United States -- Description and travel.
Notes: A sequential, multi-level social sciences programme.
Table of contents: value: [no.1] Student texts.; value: [no.2] Problems book; teacher's ed.; value: [no.3] Teacher's resource guide.