Παραπομπή σε μορφή APA (7η εκδ.)

Interaction Science Curriculum Project. (1970). Interaction of earth and time (1st experimental ed.). Rand McNally.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Interaction Science Curriculum Project. Interaction of Earth and Time. 1st experimental ed. Illinois: Rand McNally, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

Interaction Science Curriculum Project. Interaction of Earth and Time. 1st experimental ed. Rand McNally, 1970.