Cita APA

Spencer-Brown, G. (1969). Laws of form. Allen and Unwin.

Citación estilo Chicago

Spencer-Brown, G. Laws of Form. London: Allen and Unwin, 1969.

Cita MLA

Spencer-Brown, G. Laws of Form. London: Allen and Unwin, 1969.

Precaución: Estas citas no son 100% exactas.