pˈiːɾɚ dˈʌbɪlɪt, dʒˈaɪəŋkˈɑːɹloʊ ɹˈoʊɾə, ænd ɹˈɪtʃɚd pˈiː. stˈænli nˈaɪntiːnhˈʌndɹɪd sˈɛvənti tˈuː, ɔnðə faʊndˈeɪʃənz ʌv kˌɑːmbɪnɐtˈoːɹɪəl θˈiəɹi vˌiːˈaɪ: ðɪ aɪdˈiə ʌv dʒˈɛnɚɹˌeɪɾɪŋ fˈʌŋkʃən.
Peter Doubilet, Gian-Carlo Rota, and Richard P. Stanley (1972), On the foundations of combinatorial theory (VI): The idea of generating function.