I work in a lab on a variety of projects using a variety of techniques. For a recent project I was thinking we are probably going to use fancy machine learning method X which I am vaguely, but not intimately familiar with.
I have no doubt that there is a plenty of information about X online and that there are no shortage of free resources via a variety of means. However, there is also a new text which covers X among other topics that I was going to buy anyway. Is it appropriate to bring up the new relevant text with the professor with the hope of getting a copy from the research budget seeing that it is relevant to our recent project? Or is it better for me to just buy my personal copy out of pocket?