SpringerLink (Online service) & Gupta, G. (1998). Practical Aspects of Declarative Languages: First International Workshop, PADL'99, San Antonio, Texas, USA, January 18-19, 1999, Proceedings (1st ed. 1998.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-49201-1
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και Gopal Gupta. Practical Aspects of Declarative Languages: First International Workshop, PADL'99, San Antonio, Texas, USA, January 18-19, 1999, Proceedings. 1st ed. 1998. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1998. https://doi.org/10.1007/3-540-49201-1.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και Gopal Gupta. Practical Aspects of Declarative Languages: First International Workshop, PADL'99, San Antonio, Texas, USA, January 18-19, 1999, Proceedings. 1st ed. 1998. Springer Berlin Heidelberg : Imprint: Springer, 1998. https://doi.org/10.1007/3-540-49201-1.
