Gaya APA
Astrom, K, J., Lewis, F, L. (1995).
MODERN CONTROL SYSTEMS .
USA:
The Institute of Electrical and Electronics Engineers. Inc.
Gaya MLA
Astrom, Karl, J.., Lewis, Frank, L..
"MODERN CONTROL SYSTEMS".
USA:
The Institute of Electrical and Electronics Engineers. Inc,
1995.
Text.