Παραπομπή APA

Howe, L., & Wain, A. (1993). Predicting The Future. Cambridge University Press.

Παραπομπή Chicago Style

Howe, Leo, και Alan Wain. Predicting The Future. Cambridge: Cambridge University Press, 1993.

Παραπομπή MLA

Howe, Leo, και Alan Wain. Predicting The Future. Cambridge University Press, 1993.