Maura Graff Former Policy Analyst Featured Resources See more July 9, 2014 Report Training Tool resource A Practical Guide to Population and Development (2014) Throughout human history, the world's population had grown slowly and by the beginning of the 20th century was only 1.6 billion people.
July 9, 2014 Report Training Tool resource A Practical Guide to Population and Development (2014) Throughout human history, the world's population had grown slowly and by the beginning of the 20th century was only 1.6 billion people.
