No Inv.: 75700-75703,76412/S/01/5c
No Inv.: 459-460/Pemb/Perp/88/2c
No Inv.: 133225/S/Perp/12/1c
Judul asli : "State of the World 1993"
No Inv.: 1079/S/Perp/90/1c
Judul asli : "Vital Sign 1993"
Judul asli : "State of the World 1992"
Judul asli : "The Worldwacth Reader, on Global Environmental Issues"
No Inv.: 71928-71929/S/01/2c
Judul asli :"State of the world 1989"