Gaya APA

, ., Strayer, R. (2006). Explorations in World History: The Communist Experiment Revolution, Socialism, and global conflict in the twentieth century . Mc Graww Hill, USA 2006: .

Gaya MLA

, ., Strayer, Robert. "Explorations in World History: The Communist Experiment Revolution, Socialism, and global conflict in the twentieth century". Mc Graww Hill, USA 2006: , 2006. .