Babbie, E. R. (1977). Society by agreement: An introduction to sociology. Wadsworth Pub.
Citazione stile Chigago Style (17a edizione)Babbie, Earl R. Society by Agreement: An Introduction to Sociology. Belmont, Calif: Wadsworth Pub, 1977.
Citatione MLA (9a ed.)Babbie, Earl R. Society by Agreement: An Introduction to Sociology. Wadsworth Pub, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.