Dyfyniad APA

Gould, S. J. (1990). Wonderful life: The Burgess Shale and the nature of history. Hutchinson.

Dyfyniad Arddull Chicago

Gould, Stephen Jay. Wonderful Life: The Burgess Shale and the Nature of History. London: Hutchinson, 1990.

Dyfyniad MLA

Gould, Stephen Jay. Wonderful Life: The Burgess Shale and the Nature of History. Hutchinson, 1990.

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