Operations Research Society of America. (1976). Ballettin of operations research society of America. Operations Research Society of America.
শিকাগো স্টাইলে সাইটেশনOperations Research Society of America. Ballettin of Operations Research Society of America. Operations Research Society of America, 1976.
এমএলএ সাইটেশনOperations Research Society of America. Ballettin of Operations Research Society of America. Operations Research Society of America, 1976.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.