@book {5339, title = {A Contribution to the Heritage of Every American: The Conservation Activities of John D. Rockefeller, Jr.}, year = {1957}, note = {Illustrations, Maps}, pages = {1-178}, publisher = {Alfred A Knopf}, organization = {Alfred A Knopf}, address = {New York, NY}, keywords = {Conservation, John D. Rockefeller Jr., Park development, Park development -- Land acquisition}, author = {Newhall, Nancy} }