The purpling chromogen of a Hawaiian dioscorea
Harley Harris Bartlett
The purpling chromogen of a Hawaiian dioscorea - Washington United States Department of Agriculture 1913 - 19p. - Bureau of plant industry, No. 264 .
The purpling chromogen of a Hawaiian dioscorea - Washington United States Department of Agriculture 1913 - 19p. - Bureau of plant industry, No. 264 .