एपीए उद्धरण

Achuthan,A. & Vincent Paul,K. (1994). Civil engineering (4th ed.). Kerala Bhasha Institute.

शिकागो स्टाइल उद्धरण

Achuthan,A. & Vincent Paul,K. Civil Engineering. 4th ed. Tvm: Kerala Bhasha Institute, 1994.

एमएलए उद्धरण

Achuthan,A. & Vincent Paul,K. Civil Engineering. 4th ed. Kerala Bhasha Institute, 1994.