Columbia subject headings:
Harvard subject headings:
Archaeology--Law and legislation--United States.
Fossils--Collection and preservation--Law and legislation--United States.
Indians of North America--Antiquities--Law and legislation.
Mineral collectors--Legal status, laws, etc.--United States.
Plant collectors--Legal status, laws, etc.--United States.
Rock collectors--Legal status, laws, etc.--United States.
Wild animal collectors--Legal status, laws, etc.--United States.
Princeton subject headings:
Antiquities--Collection and preservation--Law and legislation--UnitedStates.
Collectors and collecting--Legal status, laws, etc.--United States.
Conservation of natural resources--Law and legislation--United States.
Fossils--Collection and preservation--Law and legislation--United States.
Minerals--Collection and preservation--Law and legislation--United States.
Plant collecting--Law and legislation--United States.
Rocks--Collection and preservation--Law and legislation--United States.
Wild animal collecting--Law and legislation--United States.