Hartman Multimedia

year of publication	ISBN	author(s)	title
1996	978-1-890266-00-4	George Poinar · Steven L. Hartman	Life In Amber
1997	978-1-890266-01-1		Anza-Borrego Wildflowers
1999	978-1-890266-02-8	Steven L. Hartman	Joshua Trees National Park Wildflowers