Sigdel, A., & Chaudhary, S. S. (1998). A study of the effectiveness of pulse polio immunization programme (PPIP) - 2053 B.S.
Cita Chicago Style (17a ed.)Sigdel, Abindra, y Sanjay Srivastava Chaudhary. A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S. 1998.
Cita MLA (8a ed.)Sigdel, Abindra, y Sanjay Srivastava Chaudhary. A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S. 1998.
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