Columbia subject headings:
Energy conservation.
Environmental protection--Citizen participation.
Home economics--Environmental aspects.
Household ecology.
Harvard subject headings:
Energy conservation
Energy conservation.
Environmental protection--Citizen participation
Environmental protection--Citizen participation.
Home economics--Environmental aspects.
Household ecology
Household ecology.
Princeton subject headings:
Energy conservation.
Environmental protection--Citizen participation.
Home economics--Environmental aspects.
Household ecology.