Levelt, W. J. M., Mills, A., & Karmiloff-Smith, A. (1981). Child language research in ESF countries: An inventory. European Science Foundation.
Chicago Style (17th ed.) CitationLevelt, Willem J. M., A. Mills, and Annette Karmiloff-Smith. Child Language Research in ESF Countries: An Inventory. Strasbourg: European Science Foundation, 1981.
MLA (9th ed.) CitationLevelt, Willem J. M., et al. Child Language Research in ESF Countries: An Inventory. European Science Foundation, 1981.
Warning: These citations may not always be 100% accurate.