Historical Social Research / Supplement. GESIS - Leibniz Institute for the Social Sciences.
Čikaški stil citiranja (17. izdanje)Historical Social Research / Supplement. Köln: GESIS - Leibniz Institute for the Social Sciences.
MLA način citiranja (8. izdanje)Historical Social Research / Supplement. GESIS - Leibniz Institute for the Social Sciences.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.