@techreport{weko_31171_1,
   author	 = "石田,康勝",
   title	 = "第4世代言語の構造",
   year 	 = "1987",
   institution	 = "コンピュータソフト（株）",
   number	 = "36(1987-PRO-011)",
   month	 = "may"
}