Gaya APA

Sorokin, P, A. (1963). Modern historical and social philosophies, [repr.]. Cet.pertama 1950 berjudul: Social philosophies of an age of crisis. . New York: Dover.

Gaya MLA

Sorokin, Pitirim, A.. "Modern historical and social philosophies, [repr.]. Cet.pertama 1950 berjudul: Social philosophies of an age of crisis. ". New York: Dover, 1963. Buku.