Gaya APA

Vucinich, A. (1951). Soviet theory of social development in the early middle ages. Tjetakan ulang dari: Speculum, journal of mediaeval studies, 26(1951) no.2. . Cambridge Mass: The Mediaeval Academy of America.

Gaya MLA

Vucinich, A.. "Soviet theory of social development in the early middle ages. Tjetakan ulang dari: Speculum, journal of mediaeval studies, 26(1951) no.2. ". Cambridge Mass: The Mediaeval Academy of America, 1951. Buku.