Ridout, R. (1984). Puzzle in outa. Grade 5 (1a. ed.). Hyman.
Chicago Style (17th ed.) CitationRidout, Ronald. Puzzle in Outa. Grade 5. 1a. ed. London: Bell 8: Hyman, 1984.
MLA (9th ed.) CitationRidout, Ronald. Puzzle in Outa. Grade 5. 1a. ed. Hyman, 1984.