APA

Blau P. M., Duncan O. D. & Tyree A. (1967). The American occupational structure. New York, NY [u.a.]: Wiley.

Chicago

Blau Peter Michael, Duncan Otis Dudley and Tyree Andrea. 1967. The American occupational structure. New York, NY [u.a.]: Wiley.

Harvard

Blau P. M., Duncan O. D. and Tyree A. (1967). The American occupational structure. New York, NY [u.a.]: Wiley.

MLA

Blau Peter Michael, Duncan Otis Dudley and Tyree Andrea. The American occupational structure. New York, NY [u.a.]: Wiley. 1967.