Zealand. Biological Conservation. 1997, 81: 247–255. 引文格式1维护:显式使用等标签 (link) Cowan, P. E.; et al. Effects of possum browsing on northern rata, Orongorongo
fireman: Belisarius and the Byzantine empire", with articles by Sidney Dean, Duncan B. Campbell, Ian Hughes, Ross Cowan, Raffaele D'Amato, and Christopher Lillington-Martin
dialogue between Senators Cowanand Conness over the wisdom of extending birthright citizenship to the children of Chinese immigrants and Gypsies." Plyler v