APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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