Types of Reference Sources for Psychology

Various types of reference sources can be helpful for a wide range of tasks such as:

Finding statistics, dates, formulas, and other sorts of factual information e.g, Statistical Sources.
Getting a broad overview and background information on a topic e.g, Encyclopedias.
Getting a definition of an unfamiliar term e.g., Dictionaries.
Locating additional resources on a topic.
Discovering how to complete a task, solve a problem, or answer a question e.g., Handbooks/Manuals/Guides.
Addresses for specific people, businesses, or institutions e.g., Directories.
Finding the appropriate format for writing styles e.g., Style Guides.
Finding search terms to use for searching databases e.g., Thesauri.