这两套书我都收齐了，
NML第一本是1961年出的，最后一本是2009年的
Most of the volumes in the New Mathematical Library cover topics not usually included in the high school curriculum ; they vary in difficulty, and, even within a single book, some parts require a greater degree of concentration than others. Thus, while the reader needs little technical knowledge to understand most of these books, he will have
to make an intellectual effort.
【 在 fishwater01 的大作中提到: 】
: 这套书是不是很老，我看好多1960s出版的样子
:
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FROM 211.161.246.*