പവന൯ & Pavanan. (1963). 21-നാം നൂറ്റാണ്ടിലേക്ക് (1st.). National Book Stall.
Citação norma Chicagoപവന൯ and Pavanan. 21-നാം നൂറ്റാണ്ടിലേക്ക്. 1st. Kottayam: National Book Stall, 1963.
Citação norma MLAപവന൯ and Pavanan. 21-നാം നൂറ്റാണ്ടിലേക്ക്. 1st. National Book Stall, 1963.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.