Fortunately I have some of these classics hardcover in my library. My dial-up won't handle book-sized downloads neither will my printer.
Lindsay's Technical Books does repro's of many classic texts for modest prices.
Also I have saved and collected many of my old college texts on these topics. Used book stores on campus will have quality bound machinery texts at reasonable prices. Those text editions no longer in vogue for scheduled courses can be had at great discounts. Early editions tend to have less to little CNC info.
Brand new college texts are usually very spendy !!!!