Gaya APA

Townsend, P, L., Gebhardt, J, E. (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.