Παραπομπή σε μορφή APA (7η εκδ.)

SINGH, G. (1978). Highway engineering (for degree, diploma, and A.M.I.E.and field engineers). Standard publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SINGH, Gurcharn. Highway Engineering (for Degree, Diploma, and A.M.I.E.and Field Engineers). New Delhi: Standard publishers, 1978.

Παραπομπή σε μορφή MLA (9th εκδ.)

SINGH, Gurcharn. Highway Engineering (for Degree, Diploma, and A.M.I.E.and Field Engineers). Standard publishers, 1978.