Παραπομπή σε μορφή APA (7η εκδ.)

Harper, W. L., Stalnaker, R., & Pearce, G. (1981). IFS: Conditionals, belief, decision, chance, and time. D. Reidel Pub.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harper, William L., Robert Stalnaker, και Glenn Pearce. IFS: Conditionals, Belief, Decision, Chance, and Time. Dordrecht Boston: D. Reidel Pub, 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harper, William L., et al. IFS: Conditionals, Belief, Decision, Chance, and Time. D. Reidel Pub, 1981.