APA aipamena

Groves, R. M. (2004). Survey errors and survey costs. New Jersey: John Wiley and Sons.

Chicago Style aipamena

Groves, Robert M. Survey Errors and Survey Costs. New Jersey: John Wiley and Sons, 2004.

MLA aipamena

Groves, Robert M. Survey Errors and Survey Costs. New Jersey: John Wiley and Sons, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.