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.
Citação norma ChicagoSEHGAL, S.B, and 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.
Citação norma MLASEHGAL, S.B, and 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.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.