Não informado. (1890). Engineering Record. Building Record and Sanitary Engineer.
Chicago-Zitierstil (17. Ausg.)Não informado. Engineering Record. New York: Building Record and Sanitary Engineer, 1890.
MLA-Zitierstil (8. Ausg.)Não informado. Engineering Record. Building Record and Sanitary Engineer, 1890.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.