Collins Field Guide: Spiders of Britain & Northern Europe
By Michael J. Roberts Harper Collins, London, 383 pp., 1996
This is actually Roberts 1995 in the World Spider Catalog. The year might have been a typo?
This is a great book to have; 450 species are covered, each with genitalia illustrations, and 288 of them include a color painting. We have lots of European imports here and they can usually be found in this book.
Spiders of the Chiricahua Mountain area, Cochise Co., Arizona
By Albert Jung & Vincent Roth Journal of the Arizona Academy of Science 9(1):29-34, 1974
One way to read it online is through JSTOR (you have to register for a free account and then put the paper on your book shelf) - http://www.jstor.org/stable/40021934. However, if you want a downloadable PDF, you have to purchase it (or ask around for a copy).
Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.