Judul asli : "Bekropte Geschiedenis der wijsbegerte"
No Inv.: 1320/S/Perp/91/1c~874/S/Perp/90/1c~623/S/Perp/90/1c~540/S/Perp/89/1c~1865/S/Perp/91/1c~550/S/Perp/91/1c~77950-77952/S/01/2c
No Inv.: 85-86/S/Perp/97/2c
No Inv.: 167/S/99/1c
Judul asli : "De Wijsbegeerte van de 20e Eeuw"
No Inv.: 816/S/Perp/89/1c~156-158/S/Perp/89/3c~815/S/Perp/89/1c~327a-327b/S/Perp/88/2c~978/S/Perp/90/1c~659-663/S/Perp/89/5c~2666/P/Perp/98/1c