Brooks, Edward  1831-1912 <br/><br/>
The new normal mental arithmetic: a thorough and complete course, by analysis and induction 
by Edward Brooks, A. M., superintendent of public schools of Philadelphia, late principal of Pennsylvania state normal school, and author of "Normal series of arithmetics", "Normal algebra", "Normal geometry", "Philosophy of arithmetic", etc. 
 - Philadelphia  Christopher Sower company  18--. 
 - 176 p.  4° 
<br/><br/> Portada con grabado central. Encuadernación en keratol (6386, 6387). Sello en tinta de la Biblioteca Pública del Estado de Durango (6386, 6387) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matemáticas