1972 The 100th Anniversary of National Parks – Wolf Trap Farm, Virginia
1972 The 100th Anniversary of National Parks – Wolf Trap Farm, Virginia
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1972 The 100th Anniversary of National Parks – Cape Hatteras National Seashore
1972 The 100th Anniversary of National Parks – Cape Hatteras National Seashore
1972 The 100th Anniversary of National Parks – Yellowstone National Park
1972 The 100th Anniversary of National Parks – Yellowstone National Park
1972 Prominent Americans – Fiorello LaGuardia
1972 Prominent Americans – Fiorello LaGuardia