Gaya APA
Shen, Alexander. (2016).
Geometry in Problems .
United States:
MSRI.
Gaya Chicago
Shen, Alexander.
Geometry in Problems.
United States:
MSRI,
2016.
Text.
Gaya MLA
Shen, Alexander.
Geometry in Problems.
United States:
MSRI,
2016.
Text.
Gaya Turabian
Shen, Alexander.
Geometry in Problems.
United States:
MSRI,
2016.
Print.