ebrary, Inc, World Health Organization, & World Plumbing Council. (2006). Health aspects of plumbing. World Health Organization ; World Plumbing Council.
Chicago-Zitierstil (17. Ausg.)ebrary, Inc, World Health Organization, und World Plumbing Council. Health Aspects of Plumbing. Geneva : [S.l.]: World Health Organization ; World Plumbing Council, 2006.
MLA-Zitierstil (9. Ausg.)ebrary, Inc, et al. Health Aspects of Plumbing. World Health Organization ; World Plumbing Council, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.