Seeing colors /
Bergen, Jan, 1898-
Seeing colors / Jan Bergen; translated from the Dutch by T. Holme s. - Eindhoven : Philips Technical Library, 1960. - 80 p. : ill. ; 22 cm. - Philips Technical Library. Popular series. .
Includes bibliographical references.
Color.--------
Seeing colors / Jan Bergen; translated from the Dutch by T. Holme s. - Eindhoven : Philips Technical Library, 1960. - 80 p. : ill. ; 22 cm. - Philips Technical Library. Popular series. .
Includes bibliographical references.
Color.--------