This is at least a real answer to the question. Understanding that there is a mutual dependence between the countryside and the cites, it seems like in the pas

This is at least a real answer to the question. Understanding that there is a mutual dependence between the countryside and the cites, it seems like in the past the limit on city growth has always been sanitation and the ability of the agricultural base to support the urban population with the labor that is available in the country. I'm curious if you know any good entry-level or popular books on this topic.