Gaya APA
L., T., P., E., G., J. (1990).
Commit to quality / Patrick L. Townsend, Joan E. Gebhardt .
New York:
John Wiley n Sons.
Gaya MLA
Townsend, Patrick, L.., Gebhardt, Joan, E..
"Commit to quality / Patrick L. Townsend, Joan E. Gebhardt".
New York:
John Wiley n Sons,
1990.
Textbook.