APA (7th ed.) Citation

McCallum, R. W., Radke, R., & Smout, A. J. P. M. (1989). Calcium antagonism and gastrointestinal motility. Excerpta Medica.

Chicago Style (17th ed.) Citation

McCallum, R. W., R. Radke, and A. J. P. M. Smout. Calcium Antagonism and Gastrointestinal Motility. Amsterdam: Excerpta Medica, 1989.

MLA (8th ed.) Citation

McCallum, R. W., et al. Calcium Antagonism and Gastrointestinal Motility. Excerpta Medica, 1989.