Gould, S. J. (1989). Wonderful life: The Burgess Shale and the nature of history. W.W. Norton.
Cita Chicago (17th ed.)Gould, Stephen Jay. Wonderful Life: The Burgess Shale and the Nature of History. New York: W.W. Norton, 1989.
Cita MLA (9th ed.)Gould, Stephen Jay. Wonderful Life: The Burgess Shale and the Nature of History. W.W. Norton, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.