* This revised edition features the same colors available in previous books plus additional color charts * Included are a 10Y and 5 GY soil chart for glouconite soils, a 5R soil chart for australia and southeast asia and 7,5R soil chart for tropical and semi tropical soils. * 2009 Revised edition * Ref Cat GPS Forestry 77321 untuk info lebih lanjut silahkan chat wa di 081292569829