APA Style
Boyd, Robert, Silk, John B.. (2003).
How humans evolved : Robert Boyd, John B. Silk (3rd ed.).
New York:
W. W. Norton.
Chicago Style
Boyd, Robert, Silk, John B..
How humans evolved : Robert Boyd, John B. Silk.
3rd ed.
New York:
W. W. Norton,
2003.
Text.
MLA Style
Boyd, Robert, Silk, John B..
How humans evolved : Robert Boyd, John B. Silk.
3rd ed.
New York:
W. W. Norton,
2003.
Text.
Turabian Style
Boyd, Robert, Silk, John B..
How humans evolved : Robert Boyd, John B. Silk.
3rd ed.
New York:
W. W. Norton,
2003.
Print.