Duggal, A. K., & Puri, P. V. (1991). Laboratory Manual in Highway Engineering. Wiley Eastern.
Citación estilo ChicagoDuggal, Ajay K., y P. Vijay Puri. Laboratory Manual in Highway Engineering. New Delhi: Wiley Eastern, 1991.
Cita MLADuggal, Ajay K., y P. Vijay Puri. Laboratory Manual in Highway Engineering. Wiley Eastern, 1991.
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