Gaya APA

Couldwell, W, T. (2018). Skull Base Surgery of the Posterior Fossa (1st ed. 2018). New york: Springer International Publishing.

Gaya MLA

Couldwell, William, T.. "Skull Base Surgery of the Posterior Fossa". 1st ed. 2018 New york: Springer International Publishing, 2018. Text.