Книги автора David Cowper
David Cowper
спорт / фитнес, газеты"No matter what your industry, no matter what your product, if you want to sell in the big leagues, this book is a revelation."
—Steve Carls…
"No matter what your industry, no matter what your product, if you want to sell in the big leagues, this book is a revelation."
—Steve Carls…
