APA

Tfelt-Hansen P., Block G., Dahlöf C., Diener H. C., Ferrari M. D., Goadsby P. J., Guidetti V., Jones B., Lipton R. B., Massiou H., Meinert C., Sandrini G., Steiner T. & Winter P. B. (20010426). Guidelines for controlled trials of drugs in migraine: second edition. : Cephalalgia : an international journal of headache.

Chicago

Tfelt-Hansen P, Block G, Dahlöf C, Diener H C, Ferrari M D, Goadsby P J, Guidetti V, Jones B, Lipton R B, Massiou H, Meinert C, Sandrini G, Steiner T and Winter P B. 20010426. Guidelines for controlled trials of drugs in migraine: second edition. : Cephalalgia : an international journal of headache.

Harvard

Tfelt-Hansen P., Block G., Dahlöf C., Diener H. C., Ferrari M. D., Goadsby P. J., Guidetti V., Jones B., Lipton R. B., Massiou H., Meinert C., Sandrini G., Steiner T. and Winter P. B. (20010426). Guidelines for controlled trials of drugs in migraine: second edition. : Cephalalgia : an international journal of headache.

MLA

Tfelt-Hansen P, Block G, Dahlöf C, Diener H C, Ferrari M D, Goadsby P J, Guidetti V, Jones B, Lipton R B, Massiou H, Meinert C, Sandrini G, Steiner T and Winter P B. Guidelines for controlled trials of drugs in migraine: second edition. : Cephalalgia : an international journal of headache. 20010426.