Gaya APA

Kleihues, P. et al (1993). Histological Typing of Tumours of The Central Nervous System (2). BERLIN: Springer-Verlag.

Gaya MLA

Kleihues, P.. et al. "Histological Typing of Tumours of The Central Nervous System". 2 BERLIN: Springer-Verlag, 1993. Text.