Directory of periodicals online. indexed, abstracted & full text / Federal Document Retrieval, Inc. Science & technology.
Citace podle Chicago (17th ed.)Directory of Periodicals Online. Indexed, Abstracted & Full Text / Federal Document Retrieval, Inc. Science & Technology.
Citace podle MLA (9th ed.)Directory of Periodicals Online. Indexed, Abstracted & Full Text / Federal Document Retrieval, Inc. Science & Technology.
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