Electronic books 12,822
Congresses 5,747
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Conference papers and proceedings 4,567
Early works to 1800 4,143
History 2,976
Tables 2,378
Problems, exercises, etc 2,302
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Early works 1,707
Problems and exercises 1,225
Textbooks 1,188
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Bibliography 945
Thèses et écrits académiques 802
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Statistics 592
Popular works 590
Handbooks, manuals, etc 532
Tables (Data) 508
Instructional television programs 507
Formulae 483
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Bibliographies 331
Early works to 1900 306
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Indexes 107
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Annotations (Provenance) 78
Manuscripts, English 78
exercise books 76
Documentary films 73
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Interviews 70
periodicals 70
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Charts, diagrams, etc 64
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Association copies (Provenance) 56
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