@book{cam63exp,
  address = {{Boston}},
  title = {Experimental and {{Quasi}}-{{Experimental Designs}} for {{Research}}},
  publisher = {{Houghton Mifflin}},
  author = {Campbell, Donald T. and Stanley, Julian C.},
  year = {1963},
  keywords = {experimental-design,health-services-research,social-science-designs},
  citeulike-article-id = {13263856},
  posted-at = {2014-07-14 14:09:24},
  priority = {0}
}

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