ഗോപാലകൃഷ്ണൻ, ന. (2002). ഗവേഷണ രീതിശാസ്ത്രം (Gaveshana reethisasthram ) (1.). Kerala Bhasha Institute.
Citação norma Chicagoഗോപാലകൃഷ്ണൻ, നടുവട്ടം. ഗവേഷണ രീതിശാസ്ത്രം (Gaveshana Reethisasthram ). 1. Thiruvananthapuram: Kerala Bhasha Institute, 2002.
Citação norma MLAഗോപാലകൃഷ്ണൻ, നടുവട്ടം. ഗവേഷണ രീതിശാസ്ത്രം (Gaveshana Reethisasthram ). 1. Kerala Bhasha Institute, 2002.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.