Schuh, C., Raudabaugh, J. L., Kromoser, R., Strohmer, M. F., Triplat, A., & Pearce, J. (2020). The Purchasing Chessboard. 3rd ed. 2017. Springer New York.
शिकागो स्टाइल उद्धरणSchuh, Christian, Joseph L. Raudabaugh, Robert Kromoser, Michael F. Strohmer, Alenka Triplat, और James Pearce. The Purchasing Chessboard. 3rd Ed. 2017. Springer New York, 2020.
एमएलए उद्धरणSchuh, Christian, et al. The Purchasing Chessboard. 3rd Ed. 2017. Springer New York, 2020.
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