No Inv.: 1437-1438/BD/Perp/86/2c
No Inv.: 558-559/AF/Perp/91/2c
Judul asli : "The Problems of Evolution"
Bibliografi
No Inv.: 10644-10646/P/Perp/90/3c~1211/S/Perp/96/1c
No Inv.: 1240-1243/Perp/85/4c
No Inv.: 114309-114313/P/Perp/08/5c
Bibliografi : hlm. 230No Inv.: 138237-138241/P/Perp/14/5c
No Inv.: 1894-1897/BD/Perp/87/4c
Judul asli : "Structure and Process of Organization"