Formby, J. (1965). An introduction to the mathematical formulation of self-organizing systems. N.J., Van Nostrand.
Chicago-referens (17:e uppl.)Formby, John. An Introduction to the Mathematical Formulation of Self-organizing Systems. Princeton: N.J., Van Nostrand, 1965.
MLA-referens (9:e uppl.)Formby, John. An Introduction to the Mathematical Formulation of Self-organizing Systems. N.J., Van Nostrand, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.