Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Based on 30 years of research, this book explains the basic differences between the variable charge soils of tropical and subtropical regions and the constant charge soils of temperate regions.