Von Hesse, E. F., & Jacobs, J. (1959). So to speak: A practical training course for developing a beautiful speaking voice (Rev. ed.). Lippincott.
Chicago Style (17th ed.) CitationVon Hesse, Elisabeth Ferguson, and Jesse Jacobs. So to Speak: A Practical Training Course for Developing a Beautiful Speaking Voice. Rev. ed. Philadelphia: Lippincott, 1959.
MLA (9th ed.) CitationVon Hesse, Elisabeth Ferguson, and Jesse Jacobs. So to Speak: A Practical Training Course for Developing a Beautiful Speaking Voice. Rev. ed. Lippincott, 1959.
Warning: These citations may not always be 100% accurate.
