Contents 1
A World 1
B China 1
Contents 1
22．8-26 History 1
37.216-.6 Information Library Scie？ 1
H South-West of Asia 2
D Asia 2
E South-East of Asia 2
F Indo-China Peninsula 2
41 Language 2
J Europe 3
L Balkans 4
K Eastern Europe 4
M Africa 6
S South Africa 6
U America 7
50 Natural Science 9
U3 U.S.A 10
X South America 11
51 Mathematics 11
Z Oceanica 12
52 Mechanics 14
53 Physics 16
54 Chemistry 23
55 Astronomy 47
56 Earth Science 48
56.1 Cartology Surveying 49
56.2 Geophysics 57
5 6.3 Hydrology 69
56.5 Geology 81
56.54 Structural Geology 95
56.55 Historical Geology 113
56.56 Regional Geology 125
56.57 Economic Geology Deposits 136
56.58 Applied Geology 155
56.6 Geochemistry 161
56.7 Petrology 168
56 8 Mineralogy 187
57.1 Phgsical Geography 197
57.15 Geomorphology 198
58.3 paleontology 202
71 Technological Science 221
65.26 Soil Science 221
72 Power Energy 223
73 Electron Technology 224
74 Mining 225
79.8 Electron Microscope 229
79.982 Computers 231
81 Chemical Industry 234
86 Civil Architectural Engineering 235
92 Encyclopaedia 238