MyBib is a free, no-ads citation tool that allows users to generate in-text citations and bibliographic references for books, articles and etc. You can paste in a book ISBN, journal DOI or website address and have the fields populate automatically.
Citefast is a user-friendly citation generator that supports APA, MLA and Chicago formatting.You could generate in-text citation and reference in four easy steps and create an account to manage your bibliographies.
EndNote Online is a web-based product which provides basic reference management and functionality. It helps to collect, store and organise references properly from different sources. *This tool is applicable for APA referencing style formats.