- Author: Richard A. O'Connor
- Language: English
- Year: 2018
- Author: Richard A. O'Connor, Penny Van Esterik
- Language: English
- Year: 2015
- Author: Penny Van Esterik, Richard A. O'Connor
- Language: English
- Year: 2017
- Author: Richard A. O'Connor, Penny Van Esterik
- Language: English
- Year: 2015