By Butler, Stuart...[et.al.] By Butler, Stuart...[et.al. by Marilena Karra...[et.al] by Ruth Mortimer...[et.al] by Keith R.A....[et.al.] By Pierre Gilbert...[et.al] by Edmund Hillary...[et.all.] by Karl Ruhrberg...[et.al] by Marilena Karra...[et.al by Maurice Kohl...[et.al.]