Columbia subject headings:
Harvard subject headings:
Fishing surveys--United States--Data processing.
Hunting surveys--United States--Data processing.
Outdoor recreation--United States--Public opinion--Data processing.
United States. Bureau of the Census--Officials and employees--Training of.
Princeton subject headings:
Fishing surveys--United States--Data processing.
Hunting surveys--United States--Data processing.
Outdoor recreation--United States--Public opinion--Data processing.
United States. Bureau of the Census--Officials and employees--Training of.