1.
Archives of the Holland Land Company representatives in the United States of America, document group 559
2.
3.
Archives of the Holland Land Company representatives in the United States of America, document group 579
Archives of the Holland Land Company representatives in the United States of America, document group 580
Grande propriété foncière et développement urbain: le cas bruxellois, XIXe-XXe siècle ; Land estates and urban development: the case of Brussels, XIXth-XXth century
