Παραπομπή σε μορφή APA (7η εκδ.)

Spencer, D. L. (1970). Technology gap in perspective: Strategy of international technology transfer. Spartan.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spencer, Daniel Lloyd. Technology Gap in Perspective: Strategy of International Technology Transfer. New York: Spartan, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spencer, Daniel Lloyd. Technology Gap in Perspective: Strategy of International Technology Transfer. Spartan, 1970.