Jacobs, J. The story of geographical discovery: How the world became known.
استشهاد بنمط شيكاغوJacobs, Joseph. The Story of Geographical Discovery: How the World Became Known.
MLA استشهادJacobs, Joseph. The Story of Geographical Discovery: How the World Became Known.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.