Cita APA (7th ed.)

Foster, R. J. (1981). Freedom of simplicity. Triangle.

Cita Chicago (17th ed.)

Foster, Richard J. Freedom of Simplicity. London: Triangle, 1981.

Cita MLA (9th ed.)

Foster, Richard J. Freedom of Simplicity. Triangle, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.