Cita APA (7a ed.)

Howe, D. P. (1870). Howe's science of language, or, Seven-hour system of grammar. C.F. Livingston's Printing House.

Cita Chicago Style (17a ed.)

Howe, D. P. Howe's Science of Language, or, Seven-hour System of Grammar. Manchester: C.F. Livingston's Printing House, 1870.

Cita MLA (8a ed.)

Howe, D. P. Howe's Science of Language, or, Seven-hour System of Grammar. C.F. Livingston's Printing House, 1870.