Characteristics and genesis Volcanic ash soil in the Philippines
Otsuka, H.
Characteristics and genesis Volcanic ash soil in the Philippines - Japan 1988 - 122 p. - No.; 24apan, Tropical Agricult .
631.44:551.217.24
Characteristics and genesis Volcanic ash soil in the Philippines - Japan 1988 - 122 p. - No.; 24apan, Tropical Agricult .
631.44:551.217.24