@book {34460,
	title = {世界裸子植物的分类和地理分布},
	year = {2017},
	note = {Zhiheng},
	publisher = {北京：科学出版社},
	organization = {北京：科学出版社},
	author = {杨永 and 王志恒 and 徐晓婷}
}
