Cita APA (7a ed.)

Cipolla, C. M. (1976). The twentieth century: Part two. Collins ; Fontana Books.

Cita Chicago Style (17a ed.)

Cipolla, Carlo M. The Twentieth Century: Part Two. Londres: Collins ; Fontana Books, 1976.

Cita MLA (8a ed.)

Cipolla, Carlo M. The Twentieth Century: Part Two. Collins ; Fontana Books, 1976.