APA引文

GUPTA PREM KUMAR. (2009). OPERATION RESEARCH. Issued.

Chicago Style (17th ed.) Citation

GUPTA PREM KUMAR. OPERATION RESEARCH. NEW DELHI: Issued, 2009.

MLA引文

GUPTA PREM KUMAR. OPERATION RESEARCH. Issued, 2009.

警告：這些引文格式不一定是100％准確.