您是否知道许多编程语言的快速参考指南？

In the course of my job I am maintaining code in a number of programming languages (listed below). As I haven't mastered most of them I keep forgetting the differences in syntax between them. Is there a good reference which covers (preferably for all of them on a side of A4, in a table) the basic features of the language e.g.In the course of my job I am maintaining code i