Penrose Tiles to Trapdoor Ciphers: And the Return of Dr Matrix
Martin Gardner
Language and Education: Volume 9
M. A. K. Halliday
Africa Today: Culture, Economics, Religion, Security
Heather Deegan
功能语法导论
Michael Alexander Kirkwood Halliday & 胡壮麟
Advanced Engineering Mathematics
K. A. Stroud & Dexter J. Booth
Old Man's War
John Scalzi