Lichens from central Asia, by A. H. Magnusson. (Reports from the Scientific expedition to the north-western provinces of China under the leadership of Dr Sven Hedin. The Sino-Swedish expedition. Publication 13-)
Lichens from central Asia, by A. H. Magnusson.
(Reports from the Scientific expedition to the north-western provinces of China under the leadership of Dr Sven Hedin. The Sino-Swedish expedition. Publication 13-)