Worcester, J. E. (1857). A pronouncing spelling-book of the English language. Brewer and Tileston ; J.W. Schermerhorn & Co..
Lua i Stíl Chicago (17ú heag.)Worcester, Joseph E. A Pronouncing Spelling-book of the English Language. Boston : New York: Brewer and Tileston ; J.W. Schermerhorn & Co., 1857.
Lua MLA (8ú heag.)Worcester, Joseph E. A Pronouncing Spelling-book of the English Language. Brewer and Tileston ; J.W. Schermerhorn & Co., 1857.
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