Cita APA (7a ed.)

Gregg, J. R. Advanced practice in Gregg shorthand. Gregg Pub. Co..

Cita Chicago Style (17a ed.)

Gregg, John Robert. Advanced Practice in Gregg Shorthand. New York: Gregg Pub. Co..

Cita MLA (8a ed.)

Gregg, John Robert. Advanced Practice in Gregg Shorthand. Gregg Pub. Co..