GRAY, J. (1994). DOLPHINS: STAINED GLASS COLOURING BOOK.
Chicago Style aipamenaGRAY, JOHN. DOLPHINS: STAINED GLASS COLOURING BOOK. 1994.
MLA aipamenaGRAY, JOHN. DOLPHINS: STAINED GLASS COLOURING BOOK. 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.