National Safety Council. School and College Division. School shop safety. School and College Division, National Safety Council.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Safety Council. School and College Division. School Shop Safety. Chicago: School and College Division, National Safety Council.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNational Safety Council. School and College Division. School Shop Safety. School and College Division, National Safety Council.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.