Παραπομπή σε μορφή APA (7η εκδ.)

Burt, D. N. (1984). Proactive procurement: The key to increased profits, productivity, and quality. Prentice-Hall.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Burt, David N. Proactive Procurement: The Key to Increased Profits, Productivity, and Quality. Englewood Cliffs, N.J.: Prentice-Hall, 1984.

Παραπομπή σε μορφή MLA (9th εκδ.)

Burt, David N. Proactive Procurement: The Key to Increased Profits, Productivity, and Quality. Prentice-Hall, 1984.