APA Citatie

Hift, R. J., Meissner, P. N., Todd, G., Kirby, P., Bilsland, D., Collins, P., . . . Moore, M. R. (1993). Homozygous variegate porphyria: An evolving clinical syndrome. BMJ Group.

Chicago Style citaat

Hift, R. J., P. N. Meissner, G. Todd, P. Kirby, D. Bilsland, P. Collins, J. Ferguson, en M. R. Moore. Homozygous Variegate Porphyria: An Evolving Clinical Syndrome. BMJ Group, 1993.

MLA citatie

Hift, R. J., et al. Homozygous Variegate Porphyria: An Evolving Clinical Syndrome. BMJ Group, 1993.