(1963). Wer weiss es?: Bibl. Rätsel (4. - 6. Tsd.). Christliches Verlagshaus.
Chicago Style (17th ed.) CitationWer Weiss Es?: Bibl. Rätsel. 4. - 6. Tsd. Stuttgart: Christliches Verlagshaus, 1963.
MLA (9th ed.) CitationWer Weiss Es?: Bibl. Rätsel. 4. - 6. Tsd. Christliches Verlagshaus, 1963.
Warning: These citations may not always be 100% accurate.