TY - `BOOK` TI - Instructional practices PB - Acad. Press CY - Orlando PY - 1985 LA - eng SE - XVI, 313 S. SN - 0-12-262302-9 SN - 978-0-12-262302-8 CN - 87 A 6868::2 AN - UBHD-3480512 ER -