APA(7版)引用形式

Agard, F. B., & Dunkel, H. B. (1948). An investigation of second-language teaching. Ginn.

Chicagoスタイル(17版)引用形式

Agard, Frederick Browning, , Harold B. Dunkel. An Investigation of Second-language Teaching. Boston: Ginn, 1948.

MLA(9版)引用形式

Agard, Frederick Browning, , Harold B. Dunkel. An Investigation of Second-language Teaching. Ginn, 1948.