it tells a long and beautiful story: for 48 years, the author has studied ramanujan 's work, first through the book of hardy and wright , next in the "collected papers", in the "lost notebook" and in the work of several other mathematicians.

Write the above sentence using proper case.
It tells a long and beautiful story: for 48 years, the author has studied Ramanujan 's work, first through the book of Hardy and Wright , next in the "Collected papers", in the "Lost notebook" and in the work of several other mathematicians.