Leaf spot of derris

Manylion Llyfryddiaeth
Prif Awdur:	Santos, Paterno R.
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	[Los Banos, Laguna] College of Agriculture, University of the Philippines [1941].
Pynciau:	Derris elliptica > Diseases and pests. Leaf-spot.