Gaya APA

(ed), M, W., editors), P, E, &, R, H, P, (. (25173). Twentieth century philosophy: the analytic tradition . : free press collier macmillan.

Gaya MLA

(ed), Morris, Weitz., editors), Paul, Edwards, &, Richard, H., Popkin, (series. "Twentieth century philosophy: the analytic tradition". : free press collier macmillan, 25173. Text.