Pynciau a Argymhellir O fewn eich chwiliad
Pynciau a Argymhellir O fewn eich chwiliad
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1gan Ellis, Donald K.Oklahoma City, The Economy Co., p1974.17 cassettes (33 lessons) + 1 student workbook and 1 teacher's handbook.
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2gan Ellis, Donald K.
Cyhoeddwyd 1971[Oklahoma City] : Individualized Instruction Inc., 1971.17 sound cassettes : 1 7/8 ips, 2 track, mono. + 1 teacher's handbook, 1 student's book, and 1 Pacer (tape player)