Gaya APA
BORNTRAEGER-Stoll, E., ORSINI,Gianni, . (2008).
Gerard Pieter Adolfs 1898-1968 : .
Wijk en Aalburg:
Pictures Publishers.
Gaya MLA
BORNTRAEGER-Stoll, Eveline., ORSINI,Gianni, .
"Gerard Pieter Adolfs 1898-1968 :".
Wijk en Aalburg:
Pictures Publishers,
2008.
Buku.