Gilbreth, Frank B. <br/><br/>
Cheaper by the dozen 
Frank B. Gilbreth, Jr., Ernestine Gilbreth Carey 
 - 38. pr. 
 - New York  Thomas Y.Crowell  1961 
 - 237 p.  21 cm. 
<br/><br/><label>Dewey Class. No.: </label>926.2