एपीए उद्धरण

Viswanatha Iyer N.E. (1996). Vivarthana vicharam. Kerala Bhasha Institute.

शिकागो स्टाइल उद्धरण

Viswanatha Iyer N.E. Vivarthana Vicharam. Thiruvananthapuram: Kerala Bhasha Institute, 1996.

एमएलए उद्धरण

Viswanatha Iyer N.E. Vivarthana Vicharam. Kerala Bhasha Institute, 1996.