APA (7th ed.) Citation

Vakali, M., Memon, M., Gatzoulis, M., & Polkey, M. Sleep disordered breathing and adult congenital heart disease. Elsevier.

Chicago Style (17th ed.) Citation

Vakali, M., M. Memon, M. Gatzoulis, and M. Polkey. Sleep Disordered Breathing and Adult Congenital Heart Disease. Elsevier.

MLA (9th ed.) Citation

Vakali, M., et al. Sleep Disordered Breathing and Adult Congenital Heart Disease. Elsevier.