Durrell, D. D. (1940). Improvement of basic reading abilities. World Book company.
Chicagoスタイル(17版)引用形式Durrell, Donald DeWitt. Improvement of Basic Reading Abilities. Yonkers-on-Hudson, N. Y: World Book company, 1940.
MLA(9版)引用形式Durrell, Donald DeWitt. Improvement of Basic Reading Abilities. World Book company, 1940.
警告: この引用は必ずしも正確ではありません.