Citazione Stile APA (7a Edizione)

Karrer, W. Richard Wright, Fire and Cloud: Wolfgang Karrer. Twentieth-century america : recent interpretations.(1972).

Citazione stile Chigago Style (17a edizione)

Karrer, Wolfgang. "Richard Wright, Fire and Cloud: Wolfgang Karrer." Twentieth-century America : Recent Interpretations.(1972) .

Citatione MLA (8a ed.)

Karrer, Wolfgang. "Richard Wright, Fire and Cloud: Wolfgang Karrer." Twentieth-century America : Recent Interpretations.(1972), .