APA stil citiranja

Martens, H. R. (1969). Introduction to systems theory: Introduction to systems theory. Columbus, Ohio: C. E. Merrill Pub. Co.

Chicago stil citiranja

Martens, Hinrich R. Introduction to systems theory: Introduction to systems theory. Columbus, Ohio: C. E. Merrill Pub. Co, 1969.

MLA stil citiranja

Martens, Hinrich R. Introduction to systems theory: Introduction to systems theory. Columbus, Ohio: C. E. Merrill Pub. Co, 1969.