APA (7th ed.) Citation

Kream, R. M., Mantione, K. J., Sheehan, M., & Stefano, G. B. Morphine's chemical messenger status in animals.

Chicago Style (17th ed.) Citation

Kream, Richard M., Kirk J. Mantione, Melinda Sheehan, and George B. Stefano. Morphine's Chemical Messenger Status in Animals.

MLA (9th ed.) Citation

Kream, Richard M., et al. Morphine's Chemical Messenger Status in Animals.