APA引文

Johnson, L. A. (1959). Employing the hard-core unemployed. American Management Association Inc.

Chicago Edition Citation

Johnson, Lawrence A. Employing the Hard-core Unemployed. United states: American Management Association Inc, 1959.

MLA引文

Johnson, Lawrence A. Employing the Hard-core Unemployed. American Management Association Inc, 1959.

警告：這些引文格式不一定是100％准確.