- Author: Martha A. Field, Valerie A. Sanchez
- Language: English
- Year: 2009
- Author: Martha A. Field
- Language: English
- Year: 2009
- Author: Barry Field Martha K Field
- Language: English
- Year: 2008
- Author: Barry C Field Martha k Field Economia ambiental
- Language: English
- Year: 2016
- Author: Barry Field Martha k Field
- Language: English
- Year: 2016
- Author: Martha R. Field
- Language: English
- Year: 2006
- Author: Martha A. Field
- Language: English
- Year: 1990
- Author: Martha A. Field Valerie A. Sanchez
- Language: English
- Year: 2000