This page has been validated.
Subclass HA
HA1-4737 | Statistics | ||
HA29-32 | Theory and method of social science statistics | ||
HA36-37 | Statistical services. Statistical bureaus | ||
HA38-39 | Registration of vital events. Vital records | ||
HA154-4737 | Statistical data | ||
HA154-155 | Universal statistics | ||
HA175-473 | By region or country |