Joel Whitburn presents Billboard top adult songs, 1961-2006 : chart data compiled from Billboard's adult contemporary charts, 1961-2006, and adult top 40 charts, 1996-2006 : Whitburn, Joel : Free Download, Borrow, and Streaming : Internet Archive
Joel Whitburn's Pop hits, 1940-1954 : compiled from Billboard's pop singles charts 1940-1954 : Whitburn, Joel : Free Download, Borrow, and Streaming : Internet Archive
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