Groves, R. M. (2004). Survey errors and survey costs. New Jersey: John Wiley and Sons.
शिकागो स्टाइल उद्धरणGroves, Robert M. Survey Errors and Survey Costs. New Jersey: John Wiley and Sons, 2004.
एमएलए उद्धरणGroves, Robert M. Survey Errors and Survey Costs. New Jersey: John Wiley and Sons, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.