APA استشهاد

Livermore, H. V. (1976). New history of Portugal (2nd. ed.). CUP.

استشهاد بنمط شيكاغو

Livermore, H. V. New History of Portugal. 2nd. ed. CUP, 1976.

MLA استشهاد

Livermore, H. V. New History of Portugal. 2nd. ed. CUP, 1976.