Also buy Doctor Dippel (The making of Frank) below click links.

Goodreads
http://www.goodreads.com/book/show/26472810-doctor-dippel---the-making-of-frank?ac=1&from_search=true

Barnes&Noble
http://www.barnesandnoble.com/w/doctor-dippel-mitchell-gibbens/1120675392?ean=9781514844588

Abebooks
http://www.abebooks.com/servlet/BookDetailsPL?bi=16786381059&searchurl=isbn%3D1514844583%26sortby%3D17