Cita APA (7th ed.)

Heatherley, J. L. (1971). Unworld people. Harper & Row.

Cita Chicago (17th ed.)

Heatherley, Joyce L. Unworld People. Cambridge: Harper & Row, 1971.

Cita MLA (9th ed.)

Heatherley, Joyce L. Unworld People. Harper & Row, 1971.