1.
, . "Flensburg. [[S.l.]: [s.n.]; 1986.
et . "Flensburg. [S.l.] : [s.n.], 4 mai 1986
Audo Yann & Barbe Jean-Paul. (1986). "Flensburg: Grenzstadt, zweisprachige stadt". [s.n.].
MLA (8th ed.) CitationAudo Yann and Barbe Jean-Paul. "Flensburg: Grenzstadt, Zweisprachige Stadt". [s.n.], 1986.
Warning: These citations may not always be 100% accurate.