Gaya APA

WEBB, C, L, P, S, A, F, W. (2015). THE WHAT ON EARTH?, WALLBOOK TIMELINE OF NATURE . London: WHAT ON EARTH.

Gaya MLA

WEBB, CHRISTOPHER, LLOYD,, PATRICK, SKIPWORTH,, ANDY, FORSHAW,, WILL. "THE WHAT ON EARTH?, WALLBOOK TIMELINE OF NATURE". London: WHAT ON EARTH, 2015. Text.