Eckersley, C. (1963). Essential english for foreign students: Book four: teacher's book. Longman Group.
Chicagoスタイル(17版)引用形式Eckersley, C.E. Essential English for Foreign Students: Book Four: Teacher's Book. London: Longman Group, 1963.
MLA(9版)引用形式Eckersley, C.E. Essential English for Foreign Students: Book Four: Teacher's Book. Longman Group, 1963.
警告: この引用は必ずしも正確ではありません.