Sugar cane, wheat and tobacco culture.

Xehetasun bibliografikoak
Egile korporatiboa:	University of the Philippines (Los Banos). College of Agriculture, Department of Agronomy
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	[College, Laguna The Department] [1961n]
Gaiak:	Sugar-cane. Tobacco. Wheat.