Bulla, H. G. (1995). Doppel. van der Wal.
Chicago Style (17th ed.) CitationBulla, Hans Georg. Doppel. Bergen: van der Wal, 1995.
MLA (9th ed.) CitationBulla, Hans Georg. Doppel. van der Wal, 1995.
Warning: These citations may not always be 100% accurate.