Columbia subject headings:
Earth sciences--Philosophy.
Holbach, Paul Henri Thiry, baron d', 1723-1789.
Philosophy of nature.
Harvard subject headings:
Earth sciences--Philosophy.
Holbach, Paul Henri Thiry, baron d', 1723-1789.
Philosophy of nature.
Princeton subject headings:
Earth sciences--Philosophy.
Holbach, Paul Henri Thiry, baron d', 1723-1789.
Philosophy of nature.