If you wrote down a number that does not begin with letters, you did not write down the call number. You would then need to find the PN's, then PN 603's and so on. A common mistake is to find the PN's and then go to a similar number, but with the decimal point in the wrong place. For instance, the library may own a book with the call number PN 60.31 L34, but this is not the book that you would be looking for. In addition to the general collection, COM Library has several special collections.
Special collections are collections of books by subjects of special interest to library patrons.
These special collection books are labeled with the special collection name after their call numbers. If you look for the book with the above call number in the regular collection, you won't find it. The last part of the call number, Texana, is telling you that the location of the book is in the Texana collection. Some library items are placed on permanent reserve and must also be requested at the circulation desk. You can request the book through COM Library by filling out an Interlibrary Loan form, available outside the Reference office.