Psychology refers to the study of human behavior and the human mind, or the mental attitude of a group. 谢邀。 有些期刊确实没有页码，只有文章的编号。无论是 endnote 或者 notexpress 引用出来的结果都是无页码状态，这种情况可以同编辑说明情况，并附文章地址，例如有些文章后面会显“online ahead. Your parents will find it hard to understand the psychology of the teenager.
Police Psychology A New Specialty and New Challenges for Men and Women
