APA (7e ed.) Bronvermelding

Piotrowski, W., Brock, M., & Klinger, M. (1984). CNS metastases: Neurosurgery in the aged. Springer-Verlag.

Chicago (17e ed.) Bronvermelding

Piotrowski, W., M. Brock, en M. Klinger. CNS Metastases: Neurosurgery in the Aged. Berlin: Springer-Verlag, 1984.

MLA (9e ed.) Bronvermelding

Piotrowski, W., et al. CNS Metastases: Neurosurgery in the Aged. Springer-Verlag, 1984.