Los puntos clave no están disponibles para este artículo en este momento.
The economic function is but one of many vital functions of land. It invests man's life with stability; it is the site of his habitation; it is a condition of his physical safety; it is the landscape and the seasons. We might as well imagine his being born without hands and feet as carrying on his life without land."
Baveye et al. (Tue,) studied this question.