https://www.amazon.com/The-Ruling-Caste-Imperial-Victorian/dp/0374283540/ref=sr_1_2?ie=UTF8&qid=1360807234&sr=8-2&keywords=The+Ruling+Caste%3A+Imperial+Lives+in+the+Victorian+Raj
https://web.archive.org/web/20081230022813/http://szabo.best.vwh.net/lex.html
https://www.amazon.com/The-Protestant-Ethic-Turns-100/dp/1594510997/
Wikipedia Bibliography: