Παραπομπή σε μορφή APA (7η εκδ.)

Hurd, P. D. (1969). New Directions in teaching secondary school science. Rand McNally.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hurd, Paul Dehart. New Directions in Teaching Secondary School Science. Chicago: Rand McNally, 1969.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hurd, Paul Dehart. New Directions in Teaching Secondary School Science. Rand McNally, 1969.