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. . . the time has also come to identify and preserve free-flowing stretches of our great rivers before growth and development make the beauty of the unspoiled waterway a memory.

Johnson, Lyndon B. (1966). “Public Papers of the Presidents of the United States: Lyndon B. Johnson, 1965”, p.160, Best Books on
. . . the time has also come to identify and preserve free-flowing stretches of our great rivers before growth and development make the beauty of the unspoiled waterway a memory.