Edfeldt, Å. W. (1959). Silent Speech and silent reading. Acta Universitatis Stockholmiensis : Stockholm Studies in educational psychology 4.
शिकागो स्टाइल उद्धरणEdfeldt, Åke Werner. "Silent Speech and Silent Reading." Acta Universitatis Stockholmiensis : Stockholm Studies in Educational Psychology 4 1959.
एमएलए उद्धरणEdfeldt, Åke Werner. "Silent Speech and Silent Reading." Acta Universitatis Stockholmiensis : Stockholm Studies in Educational Psychology 4 1959.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.