VII-6 



REFERENCE COLLECTION 



Finally, the published and unpublished documents perused by the 

 Study, directly and indirectly, probably amount to at least 5,000 

 reports, conservatively. Of this number approximately 3,000 have 

 been cataloged and indexed as to the general type of material in- 

 cluded. For possible future use, the Battel le Memorial Institute 

 developed a computerized information retrieval program for estuarine 

 documents which would allow the automatic retrieval of documents, 

 related to the method used for the quantitative data in the Nation- 

 al Estuarine Inventory. 



