Bread of flour is good; but there is bread, sweet as honey, if we would eat it, in a good book.

John Ruskin

 
Đề thi Olympic Quốc Tế Lần 19 - Năm 1977

Thể loại: Toán
Language: English
Đề Thi
File format: PDF
File size: 43.7 k
No of Page: 1