SpringerLink (Online service) & Swierstra, S. D. (1999). Programming Languages and Systems: 8th European Symposium on Programming, ESOP'99 Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS'99, Amsterdam, The Netherlands, March 22-28, 1999 Proceedings (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-49099-X
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και S. Doaitse Swierstra. Programming Languages and Systems: 8th European Symposium on Programming, ESOP'99 Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS'99, Amsterdam, The Netherlands, March 22-28, 1999 Proceedings. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-49099-X.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και S. Doaitse Swierstra. Programming Languages and Systems: 8th European Symposium on Programming, ESOP'99 Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS'99, Amsterdam, The Netherlands, March 22-28, 1999 Proceedings. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-49099-X.
