Directory of periodicals online. indexed, abstracted & full text / Federal Document Retrieval, Inc. Science & technology.
Chicago Style (17th ed.) CitationDirectory of Periodicals Online. Indexed, Abstracted & Full Text / Federal Document Retrieval, Inc. Science & Technology.
MLA (9th ed.) CitationDirectory of Periodicals Online. Indexed, Abstracted & Full Text / Federal Document Retrieval, Inc. Science & Technology.
Warning: These citations may not always be 100% accurate.