Citazione Stile APA (7a Edizione)

Heater, D. (1988). Case studies in twentieth-century history (1. publ.). Longman.

Citazione stile Chigago Style (17a edizione)

Heater, Derek. Case Studies in Twentieth-century History. 1. publ. London [u.a.] New York: Longman, 1988.

Citatione MLA (9a ed.)

Heater, Derek. Case Studies in Twentieth-century History. 1. publ. Longman, 1988.