Cita APA (7th ed.)
Silver, H., & Brennan, J. (1988). A liberal vocationalism. Methuen.
Cita Chicago (17th ed.)
Silver, Harold, i John Brennan. A Liberal Vocationalism. London ; New York: Methuen, 1988.
Cita MLA (9th ed.)
Silver, Harold, i John Brennan. A Liberal Vocationalism. Methuen, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.