Gaya APA

Ott, E, R., Schilling, E, G. (1990). Process quality control: troubleshooting and interpretation of data (2nd ed). New York: McGraw-Hill Publishing Co.

Gaya MLA

Ott, Ellis, R.., Schilling, Edward, G.. "Process quality control: troubleshooting and interpretation of data". 2nd ed New York: McGraw-Hill Publishing Co, 1990. Printed Book.