Suggested Citation: "Front Matter." National Research Council. 1950. A Method of Coding Chemicals for Correlation and Classification. Washington, DC: The National Academies Press. doi: 10.17226/21277.
Page R1
Suggested Citation: "Front Matter." National Research Council. 1950. A Method of Coding Chemicals for Correlation and Classification. Washington, DC: The National Academies Press. doi: 10.17226/21277.
Page R2
Next Chapter: Introduction
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