Gaya APA

(ed), L, R, R, A, M, K., Obolensky, D, K, &, D. (1978). The christian centuries volume two the middle ages . : darton,longman&todd.

Gaya MLA

(ed), L.J., Rogier;, R., Aubert;, M.D., Knowles., Obolensky, David, Knowles, &, Dimitri. "The christian centuries volume two the middle ages". : darton,longman&todd, 1978. Text.