Rurangwa, J., Twambaze, F. M., Kagisha, V., & Alagbonsi, A. I. Rwandan Coffee arabica has caffeine increasing with altitude, but undetectable phytomelatonin. Elsevier.
Chicago Style (17th ed.) CitationRurangwa, James, Francoise M. Twambaze, Vedaste Kagisha, and Abdullateef Isiaka Alagbonsi. Rwandan Coffee Arabica Has Caffeine Increasing with Altitude, but Undetectable Phytomelatonin. Elsevier.
MLA (9th ed.) CitationRurangwa, James, et al. Rwandan Coffee Arabica Has Caffeine Increasing with Altitude, but Undetectable Phytomelatonin. Elsevier.
Warning: These citations may not always be 100% accurate.