Cita APA (7th ed.)

Shepard, J. M. (1973). Spectrum on social problems: Society, economy, and man. Merrill.

Cita Chicago (17th ed.)

Shepard, Jon M. Spectrum on Social Problems: Society, Economy, and Man. Columbus, Ohio: Merrill, 1973.

Cita MLA (9th ed.)

Shepard, Jon M. Spectrum on Social Problems: Society, Economy, and Man. Merrill, 1973.

Atenció: Aquestes cites poden no estar 100% correctes.