Liu, S., & Lin, Y. (2011). Grey systems: Theory and applications. Springer.
Chicago Style (17th ed.) CitationLiu, Sifeng, and Yi Lin. Grey Systems: Theory and Applications. Berlin, Heidelberg: Springer, 2011.
MLA (8th ed.) CitationLiu, Sifeng, and Yi Lin. Grey Systems: Theory and Applications. Springer, 2011.
Warning: These citations may not always be 100% accurate.