MANORAMA PUB. HOUSE. (1981). MANORAMA YEAR BOOK 1981. MANORAMA PRAKASHAN.
Cita Chicago (17th ed.)MANORAMA PUB. HOUSE. MANORAMA YEAR BOOK 1981. KERLA,INDIA: MANORAMA PRAKASHAN, 1981.
Cita MLA (9th ed.)MANORAMA PUB. HOUSE. MANORAMA YEAR BOOK 1981. MANORAMA PRAKASHAN, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.