this edition written and researched by Cristian Bonetto, Paula Hardy. this edition written and researched by Alison Bing, Paula Hardy. this edition written and researched by Cristian Bonetto... [et al.] this edition written and researched by Cristian Bonetto...[et al.] this edition written and researched by Cristian Bonetto. this edition written and researched by Cristian Bonetto this edition written and researched by Cristian Bonetto [and nine others] this edition written and researched by Cristian Bonetto, Gregor Clark, Helena Smith. this edition written and researched by Cristian Bonetto, Gregor Clark, Hugh McNaughtan this edition written and researched by Damian Harper, Dai Min.