Painter, Joe; Jeffrey, Alex (2009). Political Geography (2nd ed.). ISBN 978-1-4462-4435-7. "Imperialism: A Study – Online Library of Liberty". "John Haywood...
Painter, Joe; Jeffrey, Alex (2009). Political Geography (2nd ed.). ISBN 978-1-4462-4435-7. "Imperialism: A Study – Online Library of Liberty". Watts, Michael...