Demographic problems of the village population of the Plovdiv region.
Dimitrov
I
I
D000293:Adolescent; D000328:Adult; D000368:Aged; D002031:Bulgaria; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011157:Population Dynamics; D013997:Time Factors