Autor: David a hill, 5 titluri

David E. Nielson,Chögyam Trungpa,Maja Lunde,Napoleon Hill,Olivia Steer,Michael Hammond,Carmen Ginghină,Dragos Vinereanu,Bogdan A. Popescu

David Hillier,Iain Clacher,Stephen A. Ross,Randolph W Westerfield,Bradford D Jordan