Παραπομπή σε μορφή APA (7η εκδ.)

Sonder, I. Chaim Heinz Fenchel: His Life and Work in Germany / Ines Sonder. Chaim Heinz Fenchel : a complex puzzle.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sonder, Ines. "Chaim Heinz Fenchel: His Life and Work in Germany / Ines Sonder." Chaim Heinz Fenchel : A Complex Puzzle .

Παραπομπή σε μορφή MLA (8th εκδ.)

Sonder, Ines. "Chaim Heinz Fenchel: His Life and Work in Germany / Ines Sonder." Chaim Heinz Fenchel : A Complex Puzzle, .