APA (7th ed.) Citation

Geisel, T. S. (1955). On beyond zebra. Random House.

Chicago Style (17th ed.) Citation

Geisel, Theodor Seuss. On Beyond Zebra. [S.l.]: Random House, 1955.

MLA (9th ed.) Citation

Geisel, Theodor Seuss. On Beyond Zebra. Random House, 1955.

Warning: These citations may not always be 100% accurate.