Gould, S. J. (1990). The panda's thumb: More reflections in natural history. Penguin.
Cita Chicago Style (17a ed.)Gould, Stephen Jay. The Panda's Thumb: More Reflections in Natural History. London [etc.]: Penguin, 1990.
Cita MLA (9a ed.)Gould, Stephen Jay. The Panda's Thumb: More Reflections in Natural History. Penguin, 1990.
Precaución: Estas citas no son 100% exactas.