Παραπομπή APA

Willborn, W., & Edwincheng, T. (1994). Global management of quality assurance system. McGraw Hill.

Παραπομπή Chicago Style

Willborn, Walter, και T.C Edwincheng. Global Management of Quality Assurance System. New York: McGraw Hill, 1994.

Παραπομπή MLA

Willborn, Walter, και T.C Edwincheng. Global Management of Quality Assurance System. McGraw Hill, 1994.