Cita APA (7th ed.)
Edman, V. R. (1948). The disciplines of life. World Wide Pub..
Cita Chicago (17th ed.)
Edman, V. Raymond. The Disciplines of Life. Minneapolis: World Wide Pub., 1948.
Cita MLA (9th ed.)
Edman, V. Raymond. The Disciplines of Life. World Wide Pub., 1948.
Atenció: Aquestes cites poden no estar 100% correctes.