APA (7th ed.) Citation

Stiefel, C., Benita, M., & Erskine, P. (1997). Sweet paradox. <<Alex>> Merck.

Chicago Style (17th ed.) Citation

Stiefel, Christoph, Michel Benita, and Peter Erskine. Sweet Paradox. Köln: <<Alex>> Merck, 1997.

MLA (9th ed.) Citation

Stiefel, Christoph, et al. Sweet Paradox. <<Alex>> Merck, 1997.