Dropped Pianos

This book, "Zhidkostnye raketnye dvigateli
Teoriya i proektirovanie", by G.B. Sinyarev, M.V. Dobrovolskij, is a replication of a book originally published before 1957. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.