APA引文

Ludyk, G. (1981). Time-variant discrete-time systems. Vieweg.

Chicago Edition Citation

Ludyk, Gunter. Time-variant Discrete-time Systems. Braunschweig: Vieweg, 1981.

MLA引文

Ludyk, Gunter. Time-variant Discrete-time Systems. Vieweg, 1981.

警告：這些引文格式不一定是100％准確.