Langdon, Ken. Performance reviews, 2001: CIP t.p. (Christina Osborne)

amazon.com, June 21, 2018 (Essential Managers: Performance Reviews by Ken Langdon and Christina Osborne; August 1, 2001; about the author: Christina Osborne is a former personnel director; as chief executive of a human resources consultancy and a lecturer, she has 10 years experience of advising public and private sector organizations on appraisal systems)

Dealing with difficult people, 2002: title page (Christina Osborne) page 4 of cover (Osborne is chief executive of Business Solutions, a strategic human resouces consultancy, and advised clients on how to design organizations and develop people to succeed)