Environment agency government of Japan. (1981). Illustrated white paper on the envieonment in Japan 1981. Tokyo: Environment agency government of Japan.
শিকাগো স্টাইলে সাইটেশনEnvironment agency government of Japan. Illustrated White Paper On the Envieonment in Japan 1981. Tokyo: Environment agency government of Japan, 1981.
এমএলএ সাইটেশনEnvironment agency government of Japan. Illustrated White Paper On the Envieonment in Japan 1981. Tokyo: Environment agency government of Japan, 1981.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.