Columbia subject headings:
Nature photography.
Nature--Quotations, maxims, etc.
Thoreau, Henry David, 1817-1862--Quotations.
Wilderness areas--Pictorial works.
Harvard subject headings:
Princeton subject headings:
Nature photography.
Nature--Quotations, maxims, etc.
Quotations.
Thoreau, Henry David, 1817-1862--Quotations.
Wilderness areas--Pictorial works.