Khurmi, R. S., & Gupta, J. K. (2005). Theory of machines. Eurasia.
Chicago Style aipamenaKhurmi, R S., and J K. Gupta. Theory of Machines. New Delhi: Eurasia, 2005.
MLA aipamenaKhurmi, R S., and J K. Gupta. Theory of Machines. Eurasia, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.