Παραπομπή σε μορφή APA (7η εκδ.)

SEHGAL, S., & SEHGAL, S. (1980). A Text Book On Highway Engineering And Airports For Degree And A.m. E. Students S.b. Sehgal And K.l. Bhanot. S. Chand & Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SEHGAL, S.B, και S.B SEHGAL. A Text Book On Highway Engineering And Airports For Degree And A.m. E. Students S.b. Sehgal And K.l. Bhanot. S. Chand & Company, 1980.

Παραπομπή σε μορφή MLA (8th εκδ.)

SEHGAL, S.B, και S.B SEHGAL. A Text Book On Highway Engineering And Airports For Degree And A.m. E. Students S.b. Sehgal And K.l. Bhanot. S. Chand & Company, 1980.