Dewey Decimal Classification - Children's Encyclopedia (Ages 8-11) The Dewey Decimal Classification (DDC) is a system for organizing the contents of a library. It is commonly known as the Dewey Decimal System. It helps people find nonfiction books on any subject in the library.
Top 10 Largest Cities in China. According to the related data and statistics of the 6th nationwide population census, the following cities are the Top 10 largest cities in China by urban resident population (exclude suburban, county and county-level city) in China. No. 1 Shanghai.
List of Worldâs top 10 largest cities in 2017. 10. Guangzhou Of China: In the list of top 10 largest cities of the World, the 10th position goes to the city of Guangzhou of China. The city has a population density of five thousand per square kilometer, a land area of around three thousand square kilometers, and a population of 17 million.