Walk, W. (1997). [Paragraph] 616 BGB und Leistungshindernisse in "neutraler" Sphäre. s.n.].
Chicago Style (17th ed.) CitationWalk, Werner. [Paragraph] 616 BGB Und Leistungshindernisse in "Neutraler" Sphäre. [Tübingen: s.n.], 1997.
MLA (8th ed.) CitationWalk, Werner. [Paragraph] 616 BGB Und Leistungshindernisse in "Neutraler" Sphäre. s.n.], 1997.
Warning: These citations may not always be 100% accurate.