Lauer, R. H., & Lauer, J. C. Social problems and the quality of life (Fourteenth edition.).
Citazione stile Chigago Style (17a edizione)Lauer, Robert H., e Jeanette C. Lauer. Social Problems and the Quality of Life. Fourteenth edition.
Citatione MLA (9a ed.)Lauer, Robert H., e Jeanette C. Lauer. Social Problems and the Quality of Life. Fourteenth edition.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.