Billboard 100 Lists

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i guess the best way to find ALL the chart entries and their positions on the charts is to puchase the Joel Whitburn "billboards" books from amazon.com, generally speaking you can purchase them in books that are dedicated decade annuals like the one below:



i only have the one that details ALL top40 entries from 1955-1982, but since the charts have now been extended as a top100 chart i would assume the books incorporate the entire top100.
the book i have is well laid out whereby you can either search for songs either by searching for the artist or the song you require

Does the book you have list the top 40 week by week--such that a given song could appear in the chart for, say, 6 successive charts? Or is it laid out some other way so that a given song appears only once for the year it charted?
Or both?