توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Blay, R. E. T., & Bercades, D. T. (2008). The effect of ankle flexibility on the 50-meter backstroke flutter kick. College of Human Kinetics, University of the Philippines Diliman.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Blay, Rod Edgar T., و Dave T. Bercades. The Effect of Ankle Flexibility on the 50-meter Backstroke Flutter Kick. Quezon City: College of Human Kinetics, University of the Philippines Diliman, 2008.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Blay, Rod Edgar T., و Dave T. Bercades. The Effect of Ankle Flexibility on the 50-meter Backstroke Flutter Kick. College of Human Kinetics, University of the Philippines Diliman, 2008.