Columbia subject headings:
Harvard subject headings:
Power (Mechanics)--Abstracts--Periodicals.
Power (Mechanics)--Periodicals
Power resources--Abstracts--Periodicals.
Power resources--Bibliography--Periodicals.
Princeton subject headings:
Periodicals.
Power (Mechanics)--Abstracts--Periodicals.
Power (Mechanics)--Bibliography--Periodicals.
Power resources--Abstracts--Periodicals.
Power resources--Bibliography--Periodicals.