Energy policy -- European Union countries -- Congresses Energy consumption -- European Union countries -- Congresses Sustainable development -- European Union countries -- Congresses Conservation of natural resources -- Congresses

Wildlife conservation -- Fiction Nature conservation -- Fiction

Medicina -- Terminologia. Língua Portuguesa. Portuguese language -- Conversation and phrase books (for medical personnel)

藝術家 傳記

Motion pictures -- Production and direction Motion picture producers and directors

Nature conservation -- Southern Africa Plant conservation -- Southern Africa Landscape protection -- Southern Africa Wildlife conservation -- Southern Africa Animals -- Southern Africa

Buffaloes -- North America Wildlife conservation -- North America Buffaloes -- North America -- Pictorial works

自然史 -- 美國 生態學 自然保育