Getting Your Style Guide Written! 
This paper describes how to approach the project of writing a stand-alone Style Guide that provides technical writers and other employees with a reference for documentation procedures and policies. A Style Guide project is often placed aside while other priority projects forge ahead. This occurs for several reasons, the most common being that writing a Style Guide is a monumental task! This paper provides you with the skeleton to manage a Style Guide writing project and deliver the product on time
Taylor-Collins, Pamela. STC Proceedings (1995). Articles>Style Guides>Editing