International Lake Environment Committee & United Nations Environment Programme. Guidelines of the lake management. International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিInternational Lake Environment Committee এবং United Nations Environment Programme. Guidelines of the Lake Management. Shiga, Japan, [Nairobi]: International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিInternational Lake Environment Committee এবং United Nations Environment Programme. Guidelines of the Lake Management. International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.