Gaya APA

Fles,Etha, . ([s.a]). Tien Jaren in Rome . [s.n]: Zutphen-W.J. Thieme and Cie.

Gaya MLA

Fles,Etha, . "Tien Jaren in Rome". [s.n]: Zutphen-W.J. Thieme and Cie, [s.a]. Text.