Seifert, Douglas David books & textbook
Sea Salt II:: More Salt
Waterman, Stan Hann, Doreen Castle, Cathryn Gilliam, Bret Seifert, Douglas David
CreateSpace Independent Publishing Platform /2015-02-05 Paperback / 302 Pages
isbn-10: 1507871163 / isbn-13: 9781507871164
Diving Pioneers and Innovators: A Series of In-depth Interviews
Gilliam, Bret Garth, Fred Hanauer, Eric Hitchcock, Lina Seifert, Douglas David
New World Pubns Inc /2007-10-15 Hardcover / 489 Pages
isbn-10: 1878348426 / isbn-13: 9781878348425