Schulte, C., & Schulte, C. (2002). Programming Constraint Services: High-Level Programming of Standard and New Constraint Services (1st ed. 2002.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-45945-6
Παραπομπή σε μορφή Chicago (17η εκδ.)Schulte, Christian, και Christian Schulte. Programming Constraint Services: High-Level Programming of Standard and New Constraint Services. 1st ed. 2002. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45945-6.
Παραπομπή σε μορφή MLA (8th εκδ.)Schulte, Christian, και Christian Schulte. Programming Constraint Services: High-Level Programming of Standard and New Constraint Services. 1st ed. 2002. Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45945-6.
