Gaya APA

Prothero, D, R., Buell, C. (2017). E-book Evolution: What the Fossils Say and Why It Matters . : Columbia University Press.

Gaya MLA

Prothero, Donald, R.., Buell, Carl. "E-book Evolution: What the Fossils Say and Why It Matters". : Columbia University Press, 2017. Text.