Principia mathematica /
Whitehead, Alfred North
Principia mathematica / Alfred North Whithead and Bertrand Russell - 2.ed. - Cambridge : University Press, 1957 - 3v.; 24,50 cm.
1
Principia mathematica / Alfred North Whithead and Bertrand Russell - 2.ed. - Cambridge : University Press, 1957 - 3v.; 24,50 cm.
1