Trisomy 21:  an international symposium, Convento delle Clarisse, Rapallo, Italy, November 8-10, 1979/ 
organizers, G.R. Burgio, M. Fraccaro, and L. Tiepolo editors, G.R. Burgio ... (et al.) contributors, G. Anneren ... (et al.) 
 - Berlin:  Springer-Verlag,  1981. 
 - 265 p. :  ill. ;  25 cm. 
 - Human genetics  2 .
<br/><br/><label>ISBN: </label>0387106537 3540106537 
<br/><br/><label>LCCN: </label>81-4956 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Down's syndrome--Genetic aspects--Congresses.<br/>Down's syndrome--Congresses.<br/>Chromosomes, Human, 21--22--Congresses.<br/>Trisomy--Congresses.