Spartacus and the Slave Rebellion

Don't worry about the assigned readings part, and I already have one source titled "The Spartacus War" by Barry Strauss so if you can please include that source as 1 of the 4 that would be great. Alright now this is exactly what is stated on the assignment sheet:

Due 4/5 - you will write 1 research paper of 8-10 double-spaced pp. using the assigned readings plus at least 4 outside sources (3 print and 1 web) you must use footnotes or endnotes and a bibliography following the Chicago style.