APA (7. basım) Alıntı

Webb, E. J. (1966). Unobtrusive measures: Nonreactive research in the social sciences. G.M.S. Pub.

Chicago Style (17. basım) Atıf

Webb, Eugene J. Unobtrusive Measures: Nonreactive Research in the Social Sciences. Quezon City: G.M.S. Pub, 1966.

MLA (9th ed.) Atıf

Webb, Eugene J. Unobtrusive Measures: Nonreactive Research in the Social Sciences. G.M.S. Pub, 1966.