- Author: Betty J. Meggers Clifford Evans
- Language: Spanish
- Year: 1963
- Author: Richard J. Clifford
- Language: English
- Year: 2011
- Author: Richard J. Clifford
- Language: English
- Year: 1999
- Author: Richard J. Clifford
- Language: English
- Year: 1999
- Author: Clifford S. Stagoll Michael P. Levine
- Language: English
- Year: 2019
- Author: Clifford Ando
- Language: English
- Year: 2018
- Author: Clifford V. Johnson (Author) Frank Wilczek (Foreword)
- Language: English
- Year: 2017
- Author: Clifford Ando
- Language: English
- Year: 2000
- Author: Clifford Geertz
- Language: English
- Year: 1973