APA

Li H., Xiang-Yu J., Dai G., Gu Z., Ming C., Yang Z., Ryder O. A., Li W., Fu Y. & Zhang Y. (20180412). Large numbers of vertebrates began rapid population decline in the late 19th century. : Proceedings of the National Academy of Sciences of the United States of America.

Chicago

Li Haipeng, Xiang-Yu Jinggong, Dai Guangyi, Gu Zhili, Ming Chen, Yang Zongfeng, Ryder Oliver A, Li Wen-Hsiung, Fu Yun-Xin and Zhang Ya-Ping. 20180412. Large numbers of vertebrates began rapid population decline in the late 19th century. : Proceedings of the National Academy of Sciences of the United States of America.

Harvard

Li H., Xiang-Yu J., Dai G., Gu Z., Ming C., Yang Z., Ryder O. A., Li W., Fu Y. and Zhang Y. (20180412). Large numbers of vertebrates began rapid population decline in the late 19th century. : Proceedings of the National Academy of Sciences of the United States of America.

MLA

Li Haipeng, Xiang-Yu Jinggong, Dai Guangyi, Gu Zhili, Ming Chen, Yang Zongfeng, Ryder Oliver A, Li Wen-Hsiung, Fu Yun-Xin and Zhang Ya-Ping. Large numbers of vertebrates began rapid population decline in the late 19th century. : Proceedings of the National Academy of Sciences of the United States of America. 20180412.