Gaya APA

Fuhrmann, H. (1971). From the early middle ages until the Gregorian reform.Conc(i) 4(1970-74)6-10 . : .

Gaya MLA

Fuhrmann, Horst. "From the early middle ages until the Gregorian reform.Conc(i) 4(1970-74)6-10 ". : , 1971. Majalah.