The following services are available online and provide help with popular styles, including APA and MLA. They were created to help students and researchers format their references.
BibMe
A free fully automatic bibliography maker that auto-fills. Supports automatic citation and bibliography creation for MLA, APA, Chicago and Turabian styles.
Citation Machine
Helps students and professional researchers to properly credit the information that they use. Its primary goal is to make it so easy for student researchers to cite their information sources.
KnightCite
An online citation generator service provided by the Hekman Library of Calvin College. This service simplifies the often tedious task of compiling an accurate bibliography in the appropriate style by formatting the given data on a source into a reliable citation, eliminating the need to memorize minute details of style for multiple kinds of sources.
ZoteroBib
ZoteroBib helps you build a bibliography instantly from any computer or device, without creating an account or installing any software. It’s brought to you by the team behind Zotero, the powerful open-source research tool recommended by thousands of universities worldwide, so you can trust it to help you seamlessly add sources and produce perfect bibliographies.