APA (7th ed.) Citation

OP, K., GJ, D., RC, S., & RF, M. (1977). Histamine receptors in urethrovesical smooth muscle. Urology, 10(4), 375. https://doi.org/10.1016/0090-4295(77)90171-6

Chicago Style (17th ed.) Citation

OP, Khanna, DeGregorio GJ, Sample RC, and McMichael RF. "Histamine Receptors in Urethrovesical Smooth Muscle." Urology 10, no. 4 (1977): 375. https://doi.org/10.1016/0090-4295(77)90171-6.

MLA (9th ed.) Citation

OP, Khanna, et al. "Histamine Receptors in Urethrovesical Smooth Muscle." Urology, vol. 10, no. 4, 1977, p. 375, https://doi.org/10.1016/0090-4295(77)90171-6.