APA (7th ed.) Citation

Gelb, A., & Gelb, B. (1965). O'Neill. Dell Publishing Co.

Chicago Style (17th ed.) Citation

Gelb, Arthur, and Barbara Gelb. O'Neill. Dell Publishing Co, 1965.

MLA (8th ed.) Citation

Gelb, Arthur, and Barbara Gelb. O'Neill. Dell Publishing Co, 1965.

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