publications in the nature of printed abstracts in the field of environmental pollution

'abstract':7 'environment':12 'field':10 'natur':4 'pollut':13 'print':6 'public':1

leasing of prerecorded computer database on magnetic tapes containing citations and abstracts of literature in the field of environmental pollution; on-line information search and retrieval services in the field of environmental polution

'abstract':12 'citat':10 'comput':4 'contain':9 'databas':5 'environment':19,33 'field':17,31 'inform':24 'leas':1 'line':23 'literatur':14 'magnet':7 'on-lin':21 'pollut':20 'polut':34 'prerecord':3 'retriev':27 'search':25 'servic':28 'tape':8

prerecorded computer database containing citations and abstracts of literature in the field of environmental pollution published periodically on magnetic tapes

'abstract':7 'citat':5 'comput':2 'contain':4 'databas':3 'environment':14 'field':12 'literatur':9 'magnet':19 'period':17 'pollut':15 'prerecord':1 'publish':16 'tape':20

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