Citazione APA

Singal,, R., Singal,, M., & Singal,, R. (2009). Hydraulic machines. I. K. International.

Stile di citazione Chicago

Singal,, R.K, Mridul Singal,, e Rishi Singal. Hydraulic Machines. New Delhi: I. K. International, 2009.

Citazione MLA

Singal,, R.K, et al. Hydraulic Machines. I. K. International, 2009.