APA
Gupta B.L, Gupta A, . (2003). Highway and Bridge Engineering Edition. Delhi: Standard Publication.
Chicago
Gupta B.L, Gupta A, . 2003. Highway and Bridge Engineering Edition. Delhi: Standard Publication.
Harvard
Gupta B.L, Gupta A, . (2003). Highway and Bridge Engineering Edition. Delhi: Standard Publication.
MLA
Gupta B.L, Gupta A, . Highway and Bridge Engineering Edition. Delhi: Standard Publication. 2003.