van Kleef, E., van Trijp, H., Paeps, F., & Fernández-Celemín, L. (2008). Consumer preferences for front-of-pack calories labelling. Cambridge University Press.
शिकागो स्टाइल उद्धरणvan Kleef, Ellen, Hans van Trijp, Frederic Paeps, और Laura Fernández-Celemín. Consumer Preferences for Front-of-pack Calories Labelling. Cambridge University Press, 2008.
एमएलए उद्धरणvan Kleef, Ellen, Hans van Trijp, Frederic Paeps, और Laura Fernández-Celemín. Consumer Preferences for Front-of-pack Calories Labelling. Cambridge University Press, 2008.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.