Παραπομπή σε μορφή APA (7η εκδ.)

Fortenbaugh, W. W., & Gutas, D. (1992). Theophrastus: His psychological, doxographical, and scientific writings. Transaction Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fortenbaugh, William W., και Dimitri Gutas. Theophrastus: His Psychological, Doxographical, and Scientific Writings. New Brunswick: Transaction Publishers, 1992.

Παραπομπή σε μορφή MLA (8th εκδ.)

Fortenbaugh, William W., και Dimitri Gutas. Theophrastus: His Psychological, Doxographical, and Scientific Writings. Transaction Publishers, 1992.