Παραπομπή σε μορφή APA (7η εκδ.)

Kimball, G. S. (1905). Kimball's business speller: Designed for use in commercial schools, academies, normal schools, high schools & the higher grades of the common schools. The Bobbs-Merrill Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kimball, Gustavus Sylvester. Kimball's Business Speller: Designed for Use in Commercial Schools, Academies, Normal Schools, High Schools & the Higher Grades of the Common Schools. Indianapolis: The Bobbs-Merrill Company, 1905.

Παραπομπή σε μορφή MLA (8th εκδ.)

Kimball, Gustavus Sylvester. Kimball's Business Speller: Designed for Use in Commercial Schools, Academies, Normal Schools, High Schools & the Higher Grades of the Common Schools. The Bobbs-Merrill Company, 1905.