International Association of Drilling Contractors

title	ISBN-13 (ISBN-10)	year of publica- tion	other author(s)
Environmental Aspects of Dredging	978-90-75254-05-1 (90-75254-05-9)	1997	Central Dredging Association
Environmental Aspects of Dredging	978-90-75254-03-7 (90-75254-03-2)	1996	"