APA
Ramsbottom D., Day R., Rickard C. & Construction Industry Research and Information Association. (1997). Culvert design manual. London: CIRIA.
Chicago
Ramsbottom D, Day R, Rickard C and Construction Industry Research and Information Association. 1997. Culvert design manual. London: CIRIA.
Harvard
Ramsbottom D., Day R., Rickard C. and Construction Industry Research and Information Association. (1997). Culvert design manual. London: CIRIA.
MLA
Ramsbottom D, Day R, Rickard C and Construction Industry Research and Information Association. Culvert design manual. London: CIRIA. 1997.