APA Style

Gribbin, John R., Gribbin, Mary.. (2001). How a change of climate made us human . London: Penguin Books.

Chicago Style

Gribbin, John R., Gribbin, Mary.. How a change of climate made us human. London: Penguin Books, 2001. .

MLA Style

Gribbin, John R., Gribbin, Mary.. How a change of climate made us human. London: Penguin Books, 2001. .

Turabian Style

Gribbin, John R., Gribbin, Mary.. How a change of climate made us human. London: Penguin Books, 2001. .