Deletion of Roger Tangri

Comment: As pointed out by DGG, his book ''Politics in sub-Saharan Africa'' is widely held (in 359 libraries worldwide, according to my version of Worldcat). I believe a threshold of 300 is enough to meet  criterion #1. He is also http://news.google.com/archivesearch?tab=sn&num=10&as_allsubj=all&hl=en&ned=us&q=%22Roger+Tangri%22 cited in the media, including New York Times, although not extensively. Citation impact http://scholar.google.com/scholar?as_sauthors=%22Roger+Tangri%22 appears to be borderline, as far as notability under  is concerned. All in all, I would say it is a keep
Stance: keep
Cited policy: Wikipedia:Notability (WP:PROF||WP:PROF)