Bear, Firman E <br/><br/>
Chemical analysis of soils  / 
Firman G. Bear 
 - Wooster, Ohio  :   Agricultural Experiment Station 
 - p. 227-240 
 - Ohio. Agr. Exp. Sta. Monthly Bull; 8 .
<br/><br/><label>LCCN: </label>203343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos -- Análisis  Suelos -- Química de