Heilmeyer, F. (2017). Embassy of Openness: Ludloff Ludloff proviedes a German charity with an inviting centre for information and consultation. MARK.
Chicago-viite (17. p.)Heilmeyer, Florian. "Embassy of Openness: Ludloff Ludloff Proviedes a German Charity with an Inviting Centre for Information and Consultation." MARK 2017.
MLA-viite (8. p.)Heilmeyer, Florian. "Embassy of Openness: Ludloff Ludloff Proviedes a German Charity with an Inviting Centre for Information and Consultation." MARK, 2017.
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