- Author: Robert H. Grubbs Daniel J. O'Leary
- Language: English
- Year: 2015
- Author: Robert H. Grubbs Anna G. Wenzel
- Language: English
- Year: 2015
- Author: Robert H. Grubbs Ezat Khosravi
- Language: English
- Year: 2015
- Author: Bruce Grubbs
- Language: English
- Year: 2011
- Author: Judith Evans Grubbs Tim Parkin Roslynne Bell
- Language: English
- Year: 2013
- Author: M. Ray Grubbs Ph. D. R. Eric Reidenbach Ph. D. (auth.)
- Language: German
- Year: 1995
- Author: Mary Jo Goolsby Laurie Grubbs
- Language: English
- Year: 2006
Camping Arizona
epub
- Author: Bruce Grubbs
- Language: English
- Year: 1999
