No Inv.: 2183-2184/Perp/85/2c
No Inv.: 4674-4679/P/Perp/92/5c
No Inv.: 3328-3329/S/Perp/90/2c
No Inv.: 464/P/Perp/97/1c
Judul asli : "State of the World 1992"
No Inv.: 127-136/P/Perp/98/10c
Judul asli : "The Worldwacth Reader, on Global Environmental Issues"
No Inv.: 1891-1893/S/Perp/99/3c
No Inv.: 1632-1633/S/Perp/98/2c
Judul asli : "The Green Revolution the American Environmental Movement"