E-Prime(原始内容存档于2019-10-16). Cullen Murphy, "Just curious: essays", 1995, ISBN , 039570099X p. 78 (页面存档备份,存于互联网档案馆) Zimmerman, Daniel. E-Prime as a Revision Strategy
四氟乙烯Daniel A.; Parrish, Cameron A.; Sayler, Todd S.; Tice, Kevin T.; Williams, Shane M.; Lowery, Lauren E.; Brady, Michael E.; Coward, Robert B.; Murphy,