APA-viite (7. p.)

Summerfield, M. (2009). Programming in Python 3: A complete introduction to the Python language. Addison-Wesley.

Chicago-viite (17. p.)

Summerfield, Mark. Programming in Python 3: A Complete Introduction to the Python Language. Upper Saddle River, NJ : New Delhi ; Pearson Education: Addison-Wesley, 2009.

MLA-viite (8. p.)

Summerfield, Mark. Programming in Python 3: A Complete Introduction to the Python Language. Addison-Wesley, 2009.