‘Marathon man’ Frank Shorter reflects on the running boom he helped create (页面存档备份,存于互联网档案馆).minnpost.com The 1970s Running Boom (页面存档备份,存于互联网档案馆). psu.edu
(原始内容存档于2010-12-03). William Ecenbarger. The Amish: Unwilling Stars of a Tourism Boom. Chicago Tribune. March 30, 1986 [March 23, 2010]. (原始内容存档于2012-10-26). Top
1999, 17 (2), (原始内容 (PDF)存档于2004年1月11日) Aghajanian, Liana. Will Mongolia's Boom Cost Los Angeles Its Growing Immigrant Community?. The Atlantic Cities. The