APA način citiranja

ZORGDRAGER, A., & DE KEYSER, J. (1998). Premenstrual exacerbations of multiple sclerosis. BMJ Group.

Čikaški stil citiranja

ZORGDRAGER, A., i J. DE KEYSER. Premenstrual Exacerbations of Multiple Sclerosis. BMJ Group, 1998.

MLA način citiranja

ZORGDRAGER, A., i J. DE KEYSER. Premenstrual Exacerbations of Multiple Sclerosis. BMJ Group, 1998.

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