i don't know exactly how to create a request letter. i want to request for a free booklet from a specific organization that explains how to clean window-unit air conditioners to achieve better energy efficiency. i learned about this bookelt in an article in the time magazine of a August 2, 2007 issue but unfortunately i don't remember the precise title of the booklet.
i need a suggestion or better yet an example on how to write a request letter given the situation above. thanks..