Foerster H. von (1969) Laws of Form (Book Review of Laws of Form, G. Spencer Brown). In: Whole Earth Catalog. Portola Institute, Palo Alto CA: 14. https://cepa.info/1634
(1969)
Laws of Form (Book Review of Laws of Form, G. Spencer Brown).
In: Whole Earth Catalog. Portola Institute, Palo Alto CA: 14.
Fulltext at https://cepa.info/1634