What are the bridges. Tkachenko A.

This book is not only for future engineers, designers-builders, but also for all the curious guys who want to know how everything in the world works. Here in detail, clearly and interestingly, it is talked about what bridges are, how they look, by what principle they are built, as well as how much talent and labor people showed during their construction.

for the senior preschool and younger school age.

3rd edition.