A Method for the Survey and Classification of Marginal Land in Agricultural Landscapes

---

Land Classification in the United States

---

Principles and Practice of Rural Land Classification

---

Theory and Practice in Land Classification

---

Classification and Mapping of Agricultural Land for National Water-quality Assessment

---

Marginal Agricultural Land Classification

---

Land Classification

---

Proceedings of the First National Conference on Land Classification

---

The Rural Land Classification Program

---

Proceedings of the First National Conference on Land Classification

---