Greenwood, N. A., & Howard, J. R. (2011). First contact: Teaching and learning in introductory sociology. Rowman & Littlefield Publishers.
Lua i Stíl Chicago (17ú heag.)Greenwood, Nancy A., agus Jay R. Howard. First Contact: Teaching and Learning in Introductory Sociology. Lanham: Rowman & Littlefield Publishers, 2011.
Lua MLA (9ú heag.)Greenwood, Nancy A., agus Jay R. Howard. First Contact: Teaching and Learning in Introductory Sociology. Rowman & Littlefield Publishers, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.