Von Raffler-Engel, W., & Hutcheson, R. H. (1975). Language intervention programs in the United States 1960-1974: Theoretical issues, experimental research and practical application. Van Gorcum.
Chicago Style (17th ed.) CitationVon Raffler-Engel, Walburga, and Robert H. Hutcheson. Language Intervention Programs in the United States 1960-1974: Theoretical Issues, Experimental Research and Practical Application. Assen: Van Gorcum, 1975.
MLA (9th ed.) CitationVon Raffler-Engel, Walburga, and Robert H. Hutcheson. Language Intervention Programs in the United States 1960-1974: Theoretical Issues, Experimental Research and Practical Application. Van Gorcum, 1975.
Warning: These citations may not always be 100% accurate.