Harris, M. (2006). New Oportunities education for life: Elementary students' book. Longman.
Chicagoスタイル(17版)引用形式Harris, Michael. New Oportunities Education for Life: Elementary Students' Book. England: Longman, 2006.
MLA(9版)引用形式Harris, Michael. New Oportunities Education for Life: Elementary Students' Book. Longman, 2006.
警告: この引用は必ずしも正確ではありません.