Nguồn
Fred Bronson's Billboard Book of Number 1 Hits, 5th Edition (ISBN 0-8230-7677-6)
Christopher G. Feldman The Billboard Book of No. 2 Singles (ISBN 0-8230-7695-4)
Joel Whitburn's Top Pop Singles 1955-2002 (ISBN 0-89820-155-1)
Joel Whitburn Presents the Billboard Pop Charts, 1955-1959 (ISBN 0-89820-092-X)
Joel Whitburn Presents the Billboard Hot 100 Charts: The Sixties (ISBN 0-89820-074-1)
Joel Whitburn Presents the Billboard Hot 100 Charts: The Seventies (ISBN 0-89820-076-8)
Joel Whitburn Presents the Billboard Hot 100 Charts: The Eighties (ISBN 0-89820-079-2)
Joel Whitburn Presents the Billboard Hot 100 Charts: The Nineties (ISBN 0-89820-137-3)
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