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By Ethelberg, Jan.. London : A & C Black, 1976 . 40 p. : , Translation of F�dekaeden. 22 cm.. 0713616342 | 0713616342 : | 0713616342 : | 0713616342 :

By Ethelberg, Jan.. London : Black, 1976 . 32 p. : , Translation of Korsedderkoppen. Copenhagen : Borgen, 1973. 0713616350 | 0713616350 :

By Ethelberg, Jan.. London : Black, 1976 . 18 p. : 0713616326