Detlef Singer

Pihapiirin lintuja  Detlef Singer Pokkari. KARISTO OY, 2004 ISBN 9789512342525     Linnut  Detlef Singer Jürgen Nicolai Pokkari. TAMMI KUSTANNUSOSAKEYHTIÖ, 2003 ISBN 9789513065652     Garden Birds of Britain and Europe (Collins Nature Guides)  Detlef Singer Paperback. Collins, 1996-03-11 ISBN 9780002200561     Field Guide to Birds of Britain and Northern Europe  Detlef Singer Paperback. Crowood Pre, 1991-04-01 ISBN 9781852235963     Woodland Animals of Britain and Europe  Detlef Singer Paperback. Longman, ISBN 9780582892736