Cita APA

Webb, E. J., & Webb, E. J. (1966). Unotrusive measures: Monreactive research in the social sciences. Chicago: R. McNally.

Citación estilo Chicago

Webb, Eugene J., y Eugene J. Webb. Unotrusive Measures: Monreactive Research in the Social Sciences. Chicago: R. McNally, 1966.

Cita MLA

Webb, Eugene J., y Eugene J. Webb. Unotrusive Measures: Monreactive Research in the Social Sciences. Chicago: R. McNally, 1966.