Columbia subject headings:
Harvard subject headings:
Endangered species--United States--Handbooks, manuals, etc.
Wildlife conservation--United States--Handbooks, manuals, etc.
Wildlife management--United States--Handbooks, manuals, etc.
Princeton subject headings:
Endangered species--United States--Handbooks, manuals, etc.
Wildlife conservation--United States--Handbooks, manuals, etc.
Wildlife management--United States--Handbooks, manuals, etc.