Cita APA (7th ed.)

Webb, E. T. (1981). Nonreactive measures in the social sciences (2nd ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Webb, Eugene T. Nonreactive Measures in the Social Sciences. 2nd ed. Boston: Houghton Mifflin, 1981.

Cita MLA (9th ed.)

Webb, Eugene T. Nonreactive Measures in the Social Sciences. 2nd ed. Houghton Mifflin, 1981.