Soil Diagnosis and Amelioration Committee
The Philippines Recommends for Soil Diagnosis and Amelioration - Quezon City; Philippine Council for Agriculture, Aquatic, and Natural Resources Research and Development (PCAARRD) - Department of Science and Technology; 2013 - 128 pages; Color illustrations
GPD 631.4 So3p 2013
The Philippines Recommends for Soil Diagnosis and Amelioration - Quezon City; Philippine Council for Agriculture, Aquatic, and Natural Resources Research and Development (PCAARRD) - Department of Science and Technology; 2013 - 128 pages; Color illustrations
GPD 631.4 So3p 2013