Whether you find information in books and periodicals, on the Internet, or on television, you cannot assume that it is reliable. As a researcher, you are responsible for evaluating information and judging its quality.
Different projects have different requirements for information.
You must decide how to apply each of the critera below to each of your projects. The reliability of your information depends on the qualifications and reputation of its author. Check a biographical source . Read a critical review . A review will often give information about the author.