Cita APA (7a ed.)

Babbie, E. R. (1975). The practice of social research. Wodsworth Publ.

Cita Chicago Style (17a ed.)

Babbie, Earl R. The Practice of Social Research. Wodsworth Publ, 1975.

Cita MLA (8a ed.)

Babbie, Earl R. The Practice of Social Research. Wodsworth Publ, 1975.