Masters of Spacetime(1994)
(The second book in the Dr. Dimension series)
A novel by David Bischoff and John DeChancie
Dr. Demopoulos and his ragtag crew of time and space travelers face a terrifying new challenge that threatens the entire universe after they crashland their spaceship on a giant trash planet.
Used availability for John DeChancie's Masters of Spacetime
April 1994 : USA Mass Market Paperback
January 2015 : USA, Canada, UK Kindle edition