Geisel, T. S. (1955). On beyond zebra. Random House.
Lua i Stíl Chicago (17ú heag.)Geisel, Theodor Seuss. On Beyond Zebra. [S.l.]: Random House, 1955.
Lua MLA (9ú heag.)Geisel, Theodor Seuss. On Beyond Zebra. Random House, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.