APA (7th ed.) Citation

American Chemical Society. Division of the History of Chemistry & Benfey, O. T. (1966). Kekulé centennial. American Chemical Society.

Chicago Style (17th ed.) Citation

American Chemical Society. Division of the History of Chemistry and O. Theodor Benfey. Kekulé Centennial. Washington, DC: American Chemical Society, 1966.

MLA (9th ed.) Citation

American Chemical Society. Division of the History of Chemistry and O. Theodor Benfey. Kekulé Centennial. American Chemical Society, 1966.