Gaya APA

Lauer, R, H., Lauer, J, C. (2008). Social Problems and the Quality of Life Ed. 12'th (12). New York: McGraw-Hill Companies.

Gaya MLA

Lauer, Robert, H.., Lauer, Jeanette, C.. "Social Problems and the Quality of Life Ed. 12'th". 12 New York: McGraw-Hill Companies, 2008. Text.