бібліотека електронних та каталог паперових книг

От издателя:As business marketers, the pressure to engage and retain valuable customers in a challenging economy while communication channels are exploding presents a daunting dilemma. The cacophony of marketing messages has risen to a deafening level with the advent of a multitude of new online marketing channels -- social media, mobile, email, blogs - adding to the already crowded world of offline marketing - direct mail, print advertising, TV, radio.