While the publisher does not permit downloads of an entire eBook, you can download a section/article and keep it. Because GVRL titles do not checkout. they are always available to you.
Use the link for Table of Contents for the eBook. You can jump to any article you like—then print, email yourself a link to it, listen to an audio version, or download it to your computer or tablet.
When you locate a title of interest, click on the cover to open the eBook. Use the "Search Publication" box at right.