McDonald, Sophia Levy <br/><br/>
Tables of general perturbations for a group of minro planets which includes the group one-half with applications to thirty-four cases / 
by S.L. McDonald and A.O. Leuschner. 
 - Berkeley ;  Los Angeles :  University of California Press,  1952. 
 - 209 p. 
 - Publications of the lick observatory  v. XX .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minor Planets