I am relatively new to Latex and I am trying to write my first project thesis. I am using WriteLatex, which is an online Latex environment. I was successful in obtaining the references from many sites, imported them into a .bib file in Bibtex and cite them in Author Year title format. My problem arises when I cannot see the References at the bottom in Harvard style. What I want to see is this

[Alpaydin,2004] Ethem Alpaydin, Introduction to Machine Learning, MIT Press, 2004.


What I get is just this under the name Bibliography

Ethem Alpaydin, Introduction to Machine Learning, MIT Press, 2004.


I am using the following packages

\documentclass[a4paper]{report}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{graphicx}
\usepackage{natbib}

\begin{document}

\addcontentsline{toc}{subsection}{Bibliography}
\bibliography{Ref} %My .bib file
\bibliographystyle{plainnat}
\end{document}


Edit: The Bibliography files are of the format:

@book{alpaydin2004introduction,
  title={Introduction to machine learning},
  author={Alpaydin, Ethem},
  year={2004},
  publisher={MIT press}
}


Can someone please help me get the Harvard style referencing even at the end of the document in the style I mentioned above. Thanks in advance


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