एउटा किताब हेरेर अनि त्यही कुरा सहि भन्दै हिँडेर पनि त भएन न। कि कसो ब्रो? ] what you say is right. howeer, in humanities and social scineces, sometimes you tend to borrow your framework of analysis from one book- or even a film! For example, Akira Kurosawa's movie The Roshoman Gate has been used by many social scientists/historians to explain different issues. If you read the New York Times Bestseller, The Rape of Nanking, Iris Chang follows the Kurasawa model. Heshang's (a TV serial in China in the early 90s) model has been used by many social scientists to explain China. I borrowed Friedman's model. Just borrowing a model does not necessarily mean that you just read that one book. You borrow the model from one source, and explain and analyze those based on other books+ your own ideas. I could have not mentioned the source of the model and you would have never known. However, being against plagarism (thanks to the strict-est honor code of my alma-matar in a small town America), even the thought of not-citing my sources scares the hell out of me. So if you read my postings from the past, I have always included the sources/names for further reading.