APA (7 ম সংস্করণ) উদ্ধৃতি

Gray, N. F. Water technology: An introduction for environmental scientists and engineers (2nd ed.).

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Gray, N. F. Water Technology: An Introduction for Environmental Scientists and Engineers. 2nd ed.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Gray, N. F. Water Technology: An Introduction for Environmental Scientists and Engineers. 2nd ed.