Walker, C. (1983). The impact of pest management bees and pollination. London: Tropical Development and research Institute.
শিকাগো স্টাইলে সাইটেশনWalker, Crane. The Impact of Pest Management Bees and Pollination. London: Tropical Development and research Institute, 1983.
এমএলএ সাইটেশনWalker, Crane. The Impact of Pest Management Bees and Pollination. London: Tropical Development and research Institute, 1983.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.