LIU, Sifeng, 2025. Grey Systems Analysis : Methods, Models and Applications. 2 nd ed. 2025. Singapore: Springer Nature Singapore. ISBN 9789819787272.
Elsevier - Harvard (with titles)Liu, S., 2025. Grey Systems Analysis : Methods, Models and Applications, 2 nd ed. 2025 nd ed, Series on Grey System. Springer Nature Singapore, Singapore. https://doi.org/10.1007/978-981-97-8727-2
American Psychological Association 7th editionLiu, S. (ca. 2025). Grey Systems Analysis : Methods, Models and Applications [Cd]. In Series on Grey System (2 nd ed. 2025 nd ed.). Springer Nature Singapore. https://doi.org/10.1007/978-981-97-8727-2
Springer - Basic (author-date)Liu S (2025) Grey Systems Analysis : Methods, Models and Applications, 2 nd ed. 2025 nd edn. Springer Nature Singapore, Singapore
Juristische Zitierweise (Stüber) (Deutsch)Liu, Sifeng, Grey Systems Analysis : Methods, Models and Applications, 2 nd ed. 2025 , Singapore 2025.