Lyman, R. L. V., Johnson, R. I., & Bear, M. V. (1934). Directed language practice. Ginn.
Chicagoスタイル(17版)引用形式Lyman, Rollo La Verne, Roy Ivan Johnson, , Mata Virginia Bear. Directed Language Practice. Boston: Ginn, 1934.
MLA(8版)引用形式Lyman, Rollo La Verne, et al. Directed Language Practice. Ginn, 1934.
警告: この引用は必ずしも正確ではありません.