APA Style

Saunders, Nicholas DR. (2012). World War I : The Bloodiest Battle Ever Fought . London: Octopus.

Chicago Style

Saunders, Nicholas DR. World War I : The Bloodiest Battle Ever Fought. London: Octopus, 2012. Text.

MLA Style

Saunders, Nicholas DR. World War I : The Bloodiest Battle Ever Fought. London: Octopus, 2012. Text.

Turabian Style

Saunders, Nicholas DR. World War I : The Bloodiest Battle Ever Fought. London: Octopus, 2012. Print.