Cita APA

Courtenay-Thompson, F., & Phelps, K. (1998). The 20th Century year by year: : the people and events that shaped the last hundred years. New York: Barnes & Noble Books.

Citación estilo Chicago

Courtenay-Thompson, Fiona, y Kate Phelps. The 20th Century Year By Year: : The People and Events That Shaped the Last Hundred Years. New York: Barnes & Noble Books, 1998.

Cita MLA

Courtenay-Thompson, Fiona, y Kate Phelps. The 20th Century Year By Year: : The People and Events That Shaped the Last Hundred Years. New York: Barnes & Noble Books, 1998.