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Subject (Genre)
- Congresses75
- Periodicals33
- Periodical13
- Handbooks, manuals, etc10
- Bibliography4
- Abstracts3
- Annotations (Provenance)3
- Electronic books3
- Identification3
- Laboratory Manuals3
- Laboratory manuals2
- Popular Works2
- Popular works2
- Biographical television programs1
- Biography1
- Case studies1
- Comparative studies1
- Dictionaries1
- Documentary television programs1
- Environmental television programs1