Gaya APA
Niemann, G. (1978).
Machine Elements Design And Calculation Mechanical Engineering, Volume II (Gears) (--).
Berlin:
Springer-Verlag.
Gaya MLA
Niemann, Gustav.
"Machine Elements Design And Calculation Mechanical Engineering, Volume II (Gears)".
--
Berlin:
Springer-Verlag,
1978.
Text.