Blaustein Dan, Butler Louise, Hixson Bryce, & Matthias Wanda. (1999). Science An Introduction to the Life, Earth, and Physical Sciences. American: McGraw-Hill.
Chicago-tyylinen lähdeviittausBlaustein Dan, Butler Louise, Hixson Bryce, ja Matthias Wanda. Science An Introduction to the Life, Earth, and Physical Sciences. American: McGraw-Hill, 1999.
MLA-viiteBlaustein Dan, Butler Louise, Hixson Bryce, ja Matthias Wanda. Science An Introduction to the Life, Earth, and Physical Sciences. American: McGraw-Hill, 1999.
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