Hildreth, G. H. (1958). Teaching reading: A guide to basic principles and modern practices. Holt,Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Hildreth, Gertrude Howell. Teaching Reading: A Guide to Basic Principles and Modern Practices. New York: Holt,Rinehart and Winston, 1958.
Lua MLA (9ú heag.)Hildreth, Gertrude Howell. Teaching Reading: A Guide to Basic Principles and Modern Practices. Holt,Rinehart and Winston, 1958.
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