Kramer Stephen P. (1987). How to Think Like a Scientist: Answering Questions by the Scientific Method. American: HaperCollins.
Chicago-tyylinen lähdeviittausKramer Stephen P. How to Think Like a Scientist: Answering Questions By the Scientific Method. American: HaperCollins, 1987.
MLA-viiteKramer Stephen P. How to Think Like a Scientist: Answering Questions By the Scientific Method. American: HaperCollins, 1987.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.