APA-viite (7. p.)

Cassidy, C. M. K. R. (2011). Principal of management (12th.). South western cengage learning.

Chicago-viite (17. p.)

Cassidy, Carlene M.& Kreitner Robert. Principal of Management. 12th. Australia: South western cengage learning, 2011.

MLA-viite (9. p.)

Cassidy, Carlene M.& Kreitner Robert. Principal of Management. 12th. South western cengage learning, 2011.