Study of soil in the field
Clarke, G. R.
Study of soil in the field by G. R. Clarke ; assisted by Philip Beckett - 5th ed. - Oxford Clarendon Press 1971[reprinted 1974] - vi,144p.:ill.; 22cm.
581.5 / CLA
Study of soil in the field by G. R. Clarke ; assisted by Philip Beckett - 5th ed. - Oxford Clarendon Press 1971[reprinted 1974] - vi,144p.:ill.; 22cm.
581.5 / CLA