کمپل پدر و پسر: سوق دادن مجدد آمریکایی ها به سوی تغذیه طبیعی -‏ قسمت ۴ از ۴

Many families are known for building a business empire and passing down its family riches to its descendants. The Campbell family on the other hand, wants to share their family legacy with the entire society by spreading their invaluable knowledge and passion with everyone. Isn't it remarkable how all the members of the Cambell family can each funcation as an accomplished individual, yet come together as a well-oiled machine working towards one valorous goal?