APA

SACK R., . (1976). An attitudinal portrait of the modern worker. New York: Albany State University.

Chicago

SACK Richard, . 1976. An attitudinal portrait of the modern worker. New York: Albany State University.

Harvard

SACK R., . (1976). An attitudinal portrait of the modern worker. New York: Albany State University.

MLA

SACK Richard, . An attitudinal portrait of the modern worker. New York: Albany State University. 1976.