By Deepa Seetharaman SAN FRANCISCO (Reuters) – Amazon.com Inc ratcheted up the pressure on Hachette Book Group by proposing the publishers authors get all the revenue from ebooks sold by the ecommerce company, as both sides try to resolve their bitter months-long contract dispute. Hachette rejected the offer on Tuesday. The fourth-largest U.S. book publisher, owned by Frances Lagardere, instead asked Amazon to immediately withdraw sanctions on its books. Amazons reply to Hachettes response: We call baloney. At the center of the highly charged dispute is the price Amazon can charge for e-books.