Small, James,   1889- <br/><br/>
Modern aspects of pH :   with special reference to plants and soils /  
by James Small. 
 - London :   Baillìere, Tindall and Cox,   1954. 
 - xi, 247 p. (1 dobrada) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Íon hidrogênio--Concentração<br/>Plantas--Análise.<br/>Solos--Análise.
<br/><br/><label>Dewey Class. No.: </label>541.373