. . . "Towards Zero#Stage" . "Marple: Towards Zero" . "Publication history" . . . . . . . "Towards zero" . "0843280" . . . . "242" . . . . . . . . . "9780002318525" . "Towards Zero" . "Towards Zero" . "0113249" . . . . . . . . . . . . . . "0889606" . . . .