Определение

Population density is the number of people per square kilometer.

Другие языки: ar de en es fr it ja nl pt ru

Blog - Следуйте за нами на Twitter - Купить плакат - Contact us by email

© 2023 by PopulationPyramid.net, made available under a Creative Commons license CC BY 3.0 IGO: http://creativecommons.org/licenses/by/3.0/igo/