APA استشهاد

Elgerd, O. I. (1967). Control systems theory. McGraw-Hill.

استشهاد بنمط شيكاغو

Elgerd, Olle I. Control Systems Theory. New York: McGraw-Hill, 1967.

MLA استشهاد

Elgerd, Olle I. Control Systems Theory. McGraw-Hill, 1967.