Using the Volume number, year, article title and page numbers you can order a copy of an article from the DAR Library. The research website tells you how to order from the library and provides a form to download:

http://www.dar.org/library/online_research.cfm

Give the citation details, not the googlebooks website URL: don't make the volunteer would-be helper go to the extra work to find what you can give her right away.

What library have you looked in? Major city libraries and genealogical collections have bound copies of the DAR Magazine. Your local library's inter-library loan dept. may be able to borrow the volume for you, or (using the same details as above) obtain a copy of the article for you for a few dollars; costs and charges vary from place to place.