APA način citiranja (7. izdanje)
Paddock, J. Certain systematic methods of scientific thinking may produce much more rapid progress than others.
Čikaški stil citiranja (17. izdanje)
Paddock, John. Certain Systematic Methods of Scientific Thinking May Produce Much More Rapid Progress than Others.
MLA način citiranja (9. izdanje)
Paddock, John. Certain Systematic Methods of Scientific Thinking May Produce Much More Rapid Progress than Others.
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