International Congress for Project Planning by Network Analysis, 2., & Lombaers, H. J. M. (1969). Project planning by network analysis: Proceedings of the second International Congress Amsterdam, The Netherlands, 6-10 October 1969/International Congress for Project Planning by Network Analysis; editor H. J. M. Lombaers (2nd ed.). Amsterdam: North-Holland.
Παραπομπή Chicago StyleInternational Congress for Project Planning by Network Analysis, 2nd, and H. J. M. Lombaers. Project Planning By Network Analysis: Proceedings of the Second International Congress Amsterdam, The Netherlands, 6-10 October 1969/International Congress for Project Planning By Network Analysis; Editor H. J. M. Lombaers. 2nd ed. Amsterdam: North-Holland, 1969.
Παραπομπή MLAInternational Congress for Project Planning by Network Analysis, 2nd, and H. J. M. Lombaers. Project Planning By Network Analysis: Proceedings of the Second International Congress Amsterdam, The Netherlands, 6-10 October 1969/International Congress for Project Planning By Network Analysis; Editor H. J. M. Lombaers. 2nd ed. Amsterdam: North-Holland, 1969.