Language study : In middle school, high school, and beyond - Simmons, John S.; Baines, Lawrence; Foster, Harold M.; Sato, Kyoko; Wolfram, Walt; Kunkel, Anthony; Carrol, Pamela Sissi; Dial, Micah; Baines, Lawrence; Simmons, John S.; Mayher, John S.; Angelotti, Michael (IRA, 1998)