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For links to data holdings various icons are used to represent services or actions you can take. Those icons are: | |||||
Order the volume (CD-ROM) containing the listed data. The volume will be mailed to you. | The volume (CD-ROM) contains some errors which are documented in an errata log. | ||||
Launch a custom web browser for the resource. | Launch a map based browser for the resource. | ||||
Toggle viewing into brief mode (shorter descriptions are displayed). | Toggle viewing into expanded mode (longer descriptions are displayed). |