Books on the shelves are arranged by their Library of Congress (LC) call number, which is their unique "address." Think of call numbers as individual tags assigned to every item on the shelf. Here is a page that identifies call number locations at the UCSB Library.
LC call numbers begin with letters of the alphabet. These describe the broad subject heading that the book has been assigned.
The letters and numbers that follow serve to narrow down the subject. If you click the H link in the below list of subject headings, you'll see that HD 9114 is the broad category of Agricultural industries.
HD 9114 .C89 C87 2001
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HD 9114 .C89 C79 1998 |
HD 9114 .C89 I38 1998
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HD 9114 .C89 M613 c.2 |
HD 9114 .C89 M62 2001 |
1. Read line 1 alphabetically
2. Read line 2 in straight numerical order
3. Line 3 is tricky: it is a DECIMAL number, so M613 comes before M62
4. All subsequent numbers are also treated as decimals, even if there is no decimal point
5. The final c.2 means that we have 2 copies of the same book, and this is Copy 2.