신석기문화의 출현과 선사시대 유적의 보존 Emergence of neolithic culture and preservation of prehistoric sites.

Communist China [1st].

Forest certification and social change a comprehensive study in Japan by Kajiwara, Akira

Measuring health levels in the United States, 1900-1958. by Anderson, Odin W.

Conducting your literature review by Hempel, Susanne

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The coast erosion hazard Southwest Sri Lanka a reconaissance study by Swan, Bernard

Training packages instructor's handbook.