Παραπομπή APA

Economics & Statistics,, D. o. (2009). Annual Vital statistics Report 2009. Vital statistics division.

Παραπομπή Chicago Style

Economics & Statistics,, Directorate of. Annual Vital Statistics Report 2009. Thiruvananthapuram: Vital statistics division, 2009.

Παραπομπή MLA

Economics & Statistics,, Directorate of. Annual Vital Statistics Report 2009. Vital statistics division, 2009.