Southern, A., & Wallwork, A. (2009). Science and environment: Series 2. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt.
শিকাগো স্টাইলে সাইটেশনSouthern, Anna, এবং Adrian Wallwork. Science and Environment: Series 2. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2009.
এমএলএ সাইটেশনSouthern, Anna, এবং Adrian Wallwork. Science and Environment: Series 2. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2009.
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