APA (7th ed.) Citation

Karrer, P., & Jucker, E. (1950). Carotenoids. Elsevier.

Chicago Style (17th ed.) Citation

Karrer, Paul, and Ernst Jucker. Carotenoids. New York [u.a.]: Elsevier, 1950.

MLA (9th ed.) Citation

Karrer, Paul, and Ernst Jucker. Carotenoids. Elsevier, 1950.