Porter
131Computational Ocean Acoustics , Finn B. Jensen, William A. Kuperman, Michael B. Porter, Henrik Schmidt (1994)
Traditionally, acoustics has formed one of the fundamental branches of physics. In the twentieth century, the field has broadened considerably and become increasingly interdisciplinary. At the… 600 руб132Pollyanna: Level 4 , Eleanor H. Porter (2014)
Orphan Pollyanna Whittier goes to live with her cold, unhappy Aunt Polly. She plays the glad game - it helps her find things to be glad about. Before long, Pollyanna is helping people in the town… 419 руб
