Internet is a global communication of notworks of networks across the globe. On the other hand, cloud are the back-end computers where data is stored, processed and dissemination of information resources among the Internet users. Cloud computing is easily managing the local servers for sharing of digital resources from different databases. In its most simple description, cloud computing is taking services and moving them outside an organization’s firewall. Applications, storage and other services are accessed via the Web in cloud computing environment. Reference management is a vital task in any research work in cloud computing environment. However, this paper has select one popular open source software Zotero because it gives extra facilities for importing the bibliographic and metadata from different databases in an online environment. The whole tasks has been performed in Ubuntu operating system because its very reliable and sophisticated interface. It shows how to manage the citation styles in Zotero and easily import the pdf with metadata from CORE OAI-PMH open access repositories. Apart from this it also percieved how to manage bibliographic data from the online catalogue like Open Library or Koha library OPAC. Finally, how to import all these records in a single file by using open office Zotero plugin for modifying, editing, and adding the necessary fields during reference management.