U.S. Copyright Renewals, 1967 July – December
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1968 July – December
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1969 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1969 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, 1962 January – June
Category: Encyclopedias/Dictionaries/Reference
U.S. Copyright Renewals, 1962 July – December
Category: Encyclopedias/Dictionaries/Reference