Παραπομπή σε μορφή APA (7η εκδ.)

Najafi, M., & Gokhale, S. (2005). Trenchless technology: Pipeline and utility design, construction, and renewal. McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Najafi, Mohammad, και Sanjiv Gokhale. Trenchless Technology: Pipeline and Utility Design, Construction, and Renewal. New York: McGraw-Hill, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Najafi, Mohammad, και Sanjiv Gokhale. Trenchless Technology: Pipeline and Utility Design, Construction, and Renewal. McGraw-Hill, 2005.