Παραπομπή σε μορφή APA (7η εκδ.)

Billings Geological Society. Field Conference. (1951). 2nd Annual Field Conference. The Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Billings Geological Society. Field Conference. 2nd Annual Field Conference. [Billings, Mont.: The Society, 1951.

Παραπομπή σε μορφή MLA (8th εκδ.)

Billings Geological Society. Field Conference. 2nd Annual Field Conference. The Society, 1951.