Sigdel, A., & Chaudhary, S. S. (1998). A study of the effectiveness of pulse polio immunization programme (PPIP) - 2053 B.S.
Citazione stile Chigago Style (17a edizione)Sigdel, Abindra, e Sanjay Srivastava Chaudhary. A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S. 1998.
Citatione MLA (8a ed.)Sigdel, Abindra, e Sanjay Srivastava Chaudhary. A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S. 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.