APA
Nelen W. L. D. M., van der Pluijm R. W., Hermens R. P. M. G., Bergh C., de Sutter P., Nygren K. G., Wetzels A. M. M., Grol R. P. T. M. & Kremer J. A. M. (20080929). The methodological quality of clinical guidelines of the European Society of Human Reproduction and Embryology (ESHRE). : Human reproduction (Oxford, England).
Chicago
Nelen W L D M, van der Pluijm R W, Hermens R P M G, Bergh C, de Sutter P, Nygren K G, Wetzels A M M, Grol R P T M and Kremer J A M. 20080929. The methodological quality of clinical guidelines of the European Society of Human Reproduction and Embryology (ESHRE). : Human reproduction (Oxford, England).
Harvard
Nelen W. L. D. M., van der Pluijm R. W., Hermens R. P. M. G., Bergh C., de Sutter P., Nygren K. G., Wetzels A. M. M., Grol R. P. T. M. and Kremer J. A. M. (20080929). The methodological quality of clinical guidelines of the European Society of Human Reproduction and Embryology (ESHRE). : Human reproduction (Oxford, England).
MLA
Nelen W L D M, van der Pluijm R W, Hermens R P M G, Bergh C, de Sutter P, Nygren K G, Wetzels A M M, Grol R P T M and Kremer J A M. The methodological quality of clinical guidelines of the European Society of Human Reproduction and Embryology (ESHRE). : Human reproduction (Oxford, England). 20080929.