APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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