Generally known as the Blue and Brown Books ์— ๋Œ€ํ•œ ์ „๋ฉด ์ปค๋ฒ„ ์ด๋ฏธ์ง€

Generally known as the Blue and Brown Books

Ludwig Wittgenstein

์ธ์‡„๋ณธ, English, 1958
Basil Blackwell, Oxford, 1958