Food of famine : the challenge of erosion.
Shepard, Ward
Food of famine : the challenge of erosion. - New York : The MacMillan Company, 1946. - 225 p. : il. ; 20 cm
Minería
Erosión
Libro
622
Food of famine : the challenge of erosion. - New York : The MacMillan Company, 1946. - 225 p. : il. ; 20 cm
Minería
Erosión
Libro
622