Gaya APA

Gebhardt, J, E., Townsend, P, L. (1990). Commit to quality / Patrick L. Townsend, Joan E. Gebhardt . New York: John Wiley n Sons.

Gaya MLA

Gebhardt, Joan, E.., Townsend, Patrick, L.. "Commit to quality / Patrick L. Townsend, Joan E. Gebhardt". New York: John Wiley n Sons, 1990. Textbook.