Não informado. (1975). Hydraulic pneumatic mechanical power drives, transmissions and controls. Trade & Technical Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Hydraulic Pneumatic Mechanical Power Drives, Transmissions and Controls. Morden, Inglaterra: Trade & Technical Press, 1975.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Hydraulic Pneumatic Mechanical Power Drives, Transmissions and Controls. Trade & Technical Press, 1975.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.