Παραπομπή σε μορφή APA (7η εκδ.)

Spencer, R. H. (1983). Planning, implementation, and control in product test and assurance. Prentice-Hall.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spencer, Richard H. Planning, Implementation, and Control in Product Test and Assurance. Englewood Cliffs, N.J: Prentice-Hall, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spencer, Richard H. Planning, Implementation, and Control in Product Test and Assurance. Prentice-Hall, 1983.