Medical statistics on personal computers :  a guide to the appropriate use of statistical packages / 
R. A. Brown, J. Swanson Beck. 
 - 2nd ed. 
 - Plymouth, Englang :  BMJ publishing group,  c1994. 
 - ix, 147 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0727907719 
<br/><br/><label>LC Class. No.: </label>R853   / .S8 1994