PRINCIPLES AND METHODS FOR THE ASSESSMENT OF RISK FROM ESSENTIAL TRACE ELEMENTS
WORLD HEALTH ORGANIZATION2002 年出版60 页ISBN：9241572280
STUDENT'S SOLUTIONS MANUAL MANUAL WITH EXERCISES FOR THE ELEMENTS OF STATISTICS
JAMES B.RAMSEY2002 年出版195 页ISBN：1800423056
The labyrinth of Shakespeare's sonnets : an examination of sexual elements in Shakespeare's language
by Martin Green.1974 年出版193 页ISBN：
Sophie's world:a novel about the history of philosophy
Jostein Gaarder;tr. by Paulette Moller[et.al]1994 年出版403 页ISBN：
