APA引文

Johnson, L. A. (1969). Employing the hard-core unemployed. American Management Association.

芝加哥风格引文

Johnson, Lawrence Alexander. Employing the Hard-core Unemployed. [New York]: American Management Association, 1969.

MLA引文

Johnson, Lawrence Alexander. Employing the Hard-core Unemployed. American Management Association, 1969.

警告:这些引文格式不一定是100%准确.