APA-referens (7:e uppl.)
Kumar, R. S. (2014). Transportation engineering: Railways,airports,docks and harbours. Universities Press.
Chicago-referens (17:e uppl.)
Kumar, R Srinivasa. Transportation Engineering: Railways,airports,docks and Harbours. Kolkata: Universities Press, 2014.
MLA-referens (9:e uppl.)
Kumar, R Srinivasa. Transportation Engineering: Railways,airports,docks and Harbours. Universities Press, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.