International Association of Engineering Geology. (1990). Proceedings Sixth International Congress: 6 - 10 august 1990, Amsterdam, Netherlands. Balkema.
Chicago Style (17th ed.) CitationInternational Association of Engineering Geology. Proceedings Sixth International Congress: 6 - 10 August 1990, Amsterdam, Netherlands. Rotterdam u.a: Balkema, 1990.
MLA (9th ed.) CitationInternational Association of Engineering Geology. Proceedings Sixth International Congress: 6 - 10 August 1990, Amsterdam, Netherlands. Balkema, 1990.
Warning: These citations may not always be 100% accurate.