APA aipamena

de Wit, R., Kaye, S. B., Roberts, J. T., Stoter, G., Scott, J., & Verweij, J. (1993). Oral piritrexim, an effective treatment for metastatic urothelial cancer. Nature Publishing Group.

Chicago Style aipamena

de Wit, R., S. B. Kaye, J. T. Roberts, G. Stoter, J. Scott, and J. Verweij. Oral Piritrexim, an Effective Treatment for Metastatic Urothelial Cancer. Nature Publishing Group, 1993.

MLA aipamena

de Wit, R., et al. Oral Piritrexim, an Effective Treatment for Metastatic Urothelial Cancer. Nature Publishing Group, 1993.