TY  - BOOK
AU  - Premkumar,
TI  - Grobers Textbook of orthodontics basic principles and practice
SN  - 978-81-312-1679-8
U1  - 617.643 
PY  - 2009///
CY  - Missouri
PB  - Mosby, An Imprint of Elsevier
ER  -