ebrary, Inc, Itō, M., Păun, G., Thierrin, G., & Yu, S. (2001). Words, semigroups, & transductions: Festschrift in honor of Gabriel Thierrin. World Scientific.
Čikaški stil citiranja (17. izdanje)ebrary, Inc, Masami Itō, Gheorghe Păun, Gabriel Thierrin, i Sheng Yu. Words, Semigroups, & Transductions: Festschrift in Honor of Gabriel Thierrin. River Edge, N.J. ; London: World Scientific, 2001.
MLA način citiranja (9. izdanje)ebrary, Inc, et al. Words, Semigroups, & Transductions: Festschrift in Honor of Gabriel Thierrin. World Scientific, 2001.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.