Cita APA (7th ed.)
Vance John G. (1947). Leadership and life (ed.). Grail.
Cita Chicago (17th ed.)
Vance John G. Leadership and Life. ed. Grail, 1947.
Cita MLA (9th ed.)
Vance John G. Leadership and Life. ed. Grail, 1947.
Atenció: Aquestes cites poden no estar 100% correctes.