Mathematica, inc., Princeton, N.J, & United States. National Advisory Commission on Libraries. (1967). On library statistics: Submitted to the National Advisory Commission on Libraries. National Advisory Commission on Libraries.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিMathematica, inc., Princeton, N.J, এবং United States. National Advisory Commission on Libraries. On Library Statistics: Submitted to the National Advisory Commission on Libraries. Washington, D.C.: National Advisory Commission on Libraries, 1967.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিMathematica, inc., Princeton, N.J, এবং United States. National Advisory Commission on Libraries. On Library Statistics: Submitted to the National Advisory Commission on Libraries. National Advisory Commission on Libraries, 1967.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.