I'm currently using the harvard package for the bibliography but I need to add the cite in the bibliography.

Code
----

```
\usepackage{harvard}
\harvardparenthesis{square}

```

Output
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![Output](https://i.stack.imgur.com/BAcYJ.png)

Want
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How can I obtain the `[Mon05]` part like this:

![Want](https://i.stack.imgur.com/rK9jp.png)