LeoL.DaughertyLeoL., The English Grapholect and the Introductory Composition Class, „College Composition and Communication”, 30 (2), 1979, s. 134–140, DOI: 10.2307/356315, ISSN0010-096X, JSTOR: 356315(ang.).
LeoL.DaughertyLeoL., The English Grapholect and the Introductory Composition Class, „College Composition and Communication”, 30 (2), 1979, s. 134–140, DOI: 10.2307/356315, ISSN0010-096X, JSTOR: 356315(ang.).
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Boris OttokarB.O.UnbegaunBoris OttokarB.O., The Russian Literary Language: A Comparative View, „The Modern Language Review; Cambridge”, 68 (4), Modern Humanities Research Association, 1973, s. 19–25 [dostęp 2023-07-27](ang.).
LeoL.DaughertyLeoL., The English Grapholect and the Introductory Composition Class, „College Composition and Communication”, 30 (2), 1979, s. 134–140, DOI: 10.2307/356315, ISSN0010-096X, JSTOR: 356315(ang.).