Παραπομπή APA

Groves, R. M. (2002). Survey nonresponse. John Wiley.

Παραπομπή Chicago Style

Groves, Robert M. Survey Nonresponse. New York: John Wiley, 2002.

Παραπομπή MLA

Groves, Robert M. Survey Nonresponse. John Wiley, 2002.