Cita APA (7a ed.)
Duggal, A. K., & Puri, V. P. (1991). Laboratory manual in highway engineering. New Age International.
Cita Chicago Style (17a ed.)
Duggal, Ajay K., y Vijay P. Puri. Laboratory Manual in Highway Engineering. Kolkata: New Age International, 1991.
Cita MLA (9a ed.)
Duggal, Ajay K., y Vijay P. Puri. Laboratory Manual in Highway Engineering. New Age International, 1991.
Precaución: Estas citas no son 100% exactas.