Whitney, W. D., & Knox-Heath, N. L. (1882). Elementary lessons in English for home and school use. Ginn and Heath.
Lua i Stíl Chicago (17ú heag.)Whitney, William Dwight, agus N. L. Knox-Heath. Elementary Lessons in English for Home and School Use. Boston: Ginn and Heath, 1882.
Lua MLA (8ú heag.)Whitney, William Dwight, agus N. L. Knox-Heath. Elementary Lessons in English for Home and School Use. Ginn and Heath, 1882.
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