Economics & Statistics,, D. o. (2009). Annual Vital statistics Report 2009. Vital statistics division.
Chicago Style aipamenaEconomics & Statistics,, Directorate of. Annual Vital Statistics Report 2009. Thiruvananthapuram: Vital statistics division, 2009.
MLA aipamenaEconomics & Statistics,, Directorate of. Annual Vital Statistics Report 2009. Vital statistics division, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.