6 1 10 FONTIJN, Jan Primary Author mixed material Amsterdam De Engelbervaarder 1978 HEEMSKERK, Greetje Additional Author SALVERDA, Murk Additional Author HAARSMA, Mariette Primary Author mixed material 9021465191 Amsterdam Querido 1993 HELWIG, Tineke Primary Author mixed material 0944613217 Berkeley University of California 1994 FRERIKS, Kester Primary Author mixed material 9054292113 Schoorl Conserve 2005 ZIKKEN, Aya Primary Author mixed material 9789045000145 Amsterdam Atlas 2007 WOUDE, Johan van der Primary Author mixed material 9023653041 S-Gravenhage Nijgh & Van Ditmar cop. 1973