APA-referens (7:e uppl.)
Subramanian, K. (2014). Highway railway airport and harbour engineering. Scitech Pub.
Chicago-referens (17:e uppl.)
Subramanian, K.P. Highway Railway Airport and Harbour Engineering. Kolkata: Scitech Pub, 2014.
MLA-referens (9:e uppl.)
Subramanian, K.P. Highway Railway Airport and Harbour Engineering. Scitech Pub, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.