第222篇The Dvaravati Civilization

第609篇Feeding Habits of East African Herbivores

第247篇Determining Past Climates

042Earthquake Prediction讲解

第195篇Individual Performance and the Presence of Others

第452篇Stream Deposit

第580篇Functionalism

122The Geographical Distribution of Gliding Animals讲解

第453篇Natufian Culture

087Photography and the Pictorial Weeklies讲解