Gaya APA
Todev, R. (2010).
15.000 Problems From Mathematical Olympiads Book 8 .
Lexington, USA:
Createspace Independent Publishing Platform.
Gaya MLA
Todev, R..
"15.000 Problems From Mathematical Olympiads Book 8".
Lexington, USA:
Createspace Independent Publishing Platform,
2010.
Text.