Soil management. /
Sangatanan, Pedron D.
Soil management. / Pedro D. Sangatanan. - Manila : Rex Bookstore, c1990. - vii, 274 p.: ill. 22 cm.
9712305813
Soil management.
F S 591 Sa58 1990
Soil management. / Pedro D. Sangatanan. - Manila : Rex Bookstore, c1990. - vii, 274 p.: ill. 22 cm.
9712305813
Soil management.
F S 591 Sa58 1990