Leonard, L. W. (1848). Analysis of the elementary sounds of the English language: Designed to accompany a chart of the same, with Worcester's notation. G. Tilden.
Chicago-referens (17:e uppl.)Leonard, L. W. Analysis of the Elementary Sounds of the English Language: Designed to Accompany a Chart of the Same, with Worcester's Notation. Keene [N.H.]: G. Tilden, 1848.
MLA-referens (8:e uppl.)Leonard, L. W. Analysis of the Elementary Sounds of the English Language: Designed to Accompany a Chart of the Same, with Worcester's Notation. G. Tilden, 1848.
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