Subject
4 free books about population, free to read online. Chapter 1 of any book is free, no account needed.
An Essay on the Principle of Population
T. R. Malthus
Essays on Mankind and Political Arithmetic
Sir William Petty
The Fertility of the Unfit
W. A. Chapple
The population problem: A study in human evolution
A. M. Carr-Saunders
