"785.12 |c Duo's |d Duets" . . . . "3321 785.12 |c Duo's |d Duets 785.466 |c Ensembles van hout en elektrofonen |d Ensembles of woodwind and electrophones 785.466192" . "785.466192" . "785.466 |c Ensembles van hout en elektrofonen |d Ensembles of woodwind and electrophones" . . "3321" . "3321" .