Gaya APA
Langley, G, J. (1996).
The Improvement Guide: A Practical Approach to Enhancing Organizational Performance .
San Francisco:
Jossey-Bass.
Gaya MLA
Langley, Gerald, J..
"The Improvement Guide: A Practical Approach to Enhancing Organizational Performance".
San Francisco:
Jossey-Bass,
1996.
Text.