我是学历史科学的,非常需要有一些历史地图和历史工具书。可是这方面的书很少,几乎没有。新出版几本也供应不足。比如商务印书馆出版的万国鼎、万斯年、陈梦家合编的“中国历史纪年表”一书,很早就在报纸上介绍了,我盼望该书早日到来,可是等了好几个星期后却连影子也没有看见。据当地新华书店说早已没有货了。试问为什么有些读者很需要的书却买不到呢?出版 I am a student of history and science. It is highly desirable to have some history maps and history books. But few books in this area, almost no. Several newly published books are also under-supplied. For instance, the book “Chinese Chronology of History” compiled by Wang Guo Ding, Vance Yan and Chen Meng Jia published by Commercial Press has long been introduced in the newspaper. I hope the book will come soon, but after waiting for several weeks Did not even see the shadow. According to the local Xinhua Bookstore has long been out of stock. Why do some readers need the book can not buy it? Publishing