MLA PurdueMLA is a style of documentation based on a general methodology that may be applied to many different types of writing. Since texts have become increasingly mobile, and the same document may often be found in several different sources, following a set of rigid rules no longer suffices.
Thus, the current system is based on a few guiding principles, rather than an extensive list of specific rules. While the handbook still describes how to cite sources, it is organized according to the process of documentation, rather than by the sources themselves. This gives writers a flexible method that is near-universally applicable. Once you are familiar with the method, you can use it to document any type of source, for any type of paper, in any field.