Citazione Stile APA (7a Edizione)

Gupta, B. L., & Gupta, A. (1995). Text Book of Road, Railway, Bridge & Tunnel Engineering (5th ed.). Standard Publishers Distributors.

Citazione stile Chigago Style (17a edizione)

Gupta, B. L., e Amit Gupta. Text Book of Road, Railway, Bridge & Tunnel Engineering. 5th ed. Delhi: Standard Publishers Distributors, 1995.

Citatione MLA (9a ed.)

Gupta, B. L., e Amit Gupta. Text Book of Road, Railway, Bridge & Tunnel Engineering. 5th ed. Standard Publishers Distributors, 1995.