APA-viite (7. p.)
Nel, B. (2013). Performance in a box: Performance improvement toolbox for human resources. Knowres Publishing.
Chicago-viite (17. p.)
Nel, Belia. Performance in a Box: Performance Improvement Toolbox for Human Resources. Randburg, South Africa: Knowres Publishing, 2013.
MLA-viite (9. p.)
Nel, Belia. Performance in a Box: Performance Improvement Toolbox for Human Resources. Knowres Publishing, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.