Robert E. Dugan

9 books

456 pages paperback

nonfiction education science informative reflective medium-paced

243 pages 1998

nonfiction informative medium-paced

328 pages paperback 2011

medium-paced

187 pages paperback 2017

medium-paced

242 pages 2013

informative medium-paced

234 pages paperback

nonfiction computer science

492 pages paperback

nonfiction computer science politics medium-paced

350 pages hardcover

nonfiction education politics science medium-paced

346 pages paperback

nonfiction reference science