Gould, S. J. (2002). I have landed: Splashes and reflections in natural history. Vintage.
استشهاد بنمط شيكاغوGould, Stephen Jay. I Have Landed: Splashes and Reflections in Natural History. London: Vintage, 2002.
MLA استشهادGould, Stephen Jay. I Have Landed: Splashes and Reflections in Natural History. Vintage, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.