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