Παραπομπή σε μορφή APA (7η εκδ.)

Sparling, K. (1994). Quality assurance in marketing: Setting action standards for better results. McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sparling, Keith. Quality Assurance in Marketing: Setting Action Standards for Better Results. London: McGraw-Hill, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sparling, Keith. Quality Assurance in Marketing: Setting Action Standards for Better Results. McGraw-Hill, 1994.