Παραπομπή σε μορφή APA (7η εκδ.)

Illick, J. S., & Aughanbaugh, J. E. (1930). Pitch pine in Pennsylvania. Dept. of Forests and Waters.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Illick, Joseph S., και John E. Aughanbaugh. Pitch Pine in Pennsylvania. Harrisburg, Pa.: Dept. of Forests and Waters, 1930.

Παραπομπή σε μορφή MLA (8th εκδ.)

Illick, Joseph S., και John E. Aughanbaugh. Pitch Pine in Pennsylvania. Dept. of Forests and Waters, 1930.