1. Molecular Mechanics
by Ulrich Burkert; Norman L. Allinger 
Price: USD 7.79
Dealer: Biblio, Ergodebooks
Description: Oxford University Press, USA, Date: 1982-05-05. Paperback. Good. 1982. Oxford University Press, USA ISBN 0841208859 9780841208858 [US] 

2. Molecular Mechanics
by Ulrich Burkert; Norman L. Allinger 
Price: USD 7.79
Dealer: Abebooks, Ergodebooks
Description: ISBN10: 0841208859, ISBN13: 9780841208858, [publisher: Oxford University Press, USA] Softcover [Houston, TX, U.S.A.] [Publication Year: 1982]