Gaya APA
Rusczyk, R. (2007).
The art of problem solving : Introduction to algebra (Cetakan Pertama).
California:
AoPS Incoporated.
Gaya MLA
Rusczyk, Richard.
"The art of problem solving : Introduction to algebra".
Cetakan Pertama
California:
AoPS Incoporated,
2007.
Text.