Citazione Stile APA (7a Edizione)

Perry, D. G. (1965). Sketch-Maps in modern history 1789 - 1960 (2. ed., reprinted.). Murray.

Citazione stile Chigago Style (17a edizione)

Perry, D. G. Sketch-Maps in Modern History 1789 - 1960. 2. ed., reprinted. London: Murray, 1965.

Citatione MLA (9a ed.)

Perry, D. G. Sketch-Maps in Modern History 1789 - 1960. 2. ed., reprinted. Murray, 1965.