Dyfyniad APA

Gould, S. J. (1990). An urchin in the storm: Essays about books and ideas (First edition.). Penguin Books.

Dyfyniad Arddull Chicago

Gould, Stephen Jay. An Urchin in the Storm: Essays About Books and Ideas. First edition. London: Penguin Books, 1990.

Dyfyniad MLA

Gould, Stephen Jay. An Urchin in the Storm: Essays About Books and Ideas. First edition. Penguin Books, 1990.

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