Cita APA (7a ed.)

Sage Publications. Herausgebendes Organ Beverly Hills, Calif.; London. (1977). Sage focus editions. Sage Publications.

Cita Chicago Style (17a ed.)

Sage Publications. Herausgebendes Organ Beverly Hills, Calif.; London. Sage Focus Editions. Thousand Oaks, Calif: Sage Publications, 1977.

Cita MLA (9a ed.)

Sage Publications. Herausgebendes Organ Beverly Hills, Calif.; London. Sage Focus Editions. Sage Publications, 1977.