Abstract: A paragraph summary of what the study includes
Conference proceedings: An abstract presented at a conference, usually without the full article text
Databases: Collections of online resources, such as library databases
Encyclopedias: May contain information about many subjects or specialized information on a single subject
Empirical research: reports the results of original research
Indexes: Print or online collections of abstracts, may not contain full text articles
Monograph: Single volume book
Pre-prints: Preview of article, usually still in peer-review process (not all are published later)
Primary source: Original sources which report on new information or contain original ideas
Secondary source: Analyzes or comments on original sources
Tertiary source: Compares or compiles secondary sources
Textbook: Usually published years after primary sources are published
Databases with Background Info on Chemistry Topics:
(Subject encyclopedias and dictionaries)
