@article{weko_7598_1,
   author	 = "藤井,健夫",
   title	 = "Some Observations on the Passive Structure in English",
   journal	 = "研究論集",
   year 	 = "1973",
   volume	 = "20",
   number	 = "",
   pages	 = "59--69",
   month	 = "mar"
}