APA način citiranja (7. izdanje)

Barclay, I. (2000). New product development a practice workbook for improving.

Čikaški stil citiranja (17. izdanje)

Barclay, Ian. New Product Development a Practice Workbook for Improving. Oxford, 2000.

MLA način citiranja (9. izdanje)

Barclay, Ian. New Product Development a Practice Workbook for Improving. 2000.