APA Citation

Lenchner, G. Math olympiad contest problem: For elementary and middle schools. Kuala Lumpur: Ardent Educational.

Chicago Style Citation

Lenchner, George. Math Olympiad Contest Problem: For Elementary and Middle Schools. Kuala Lumpur: Ardent Educational.

MLA Citation

Lenchner, George. Math Olympiad Contest Problem: For Elementary and Middle Schools. Kuala Lumpur: Ardent Educational.

Warning: These citations may not always be 100% accurate.