Title from cover.
Canadian periodical index 0008-4719
Abridged readers' guide to periodical literature 0001-334X
Magazine index 1977-
Readers' guide to periodical literature 0034-0464
Readers' guide abstracts (microform) 0886-0092
Coal abstracts 0309-4979
Consumers index to product evaluations and information sources 0094-0534
Energy information abstracts 0147-6521
Energy research abstracts 0160-3604 July 1976-
Environment abstracts 0093-3287
Popular magazine review 0740-3763 1984-
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