U.S. Copyright Renewals, 1976 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1976 July – December
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1977 July – December
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1970 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1971 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1971 July – December
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1972 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1972 July – December
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1973 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1974 January – June
Category: Encyclopedias/Dictionaries/Reference