this edition written and researched by Oliver Berry ... [et al.] this edition written and researched by Oliver Berry ...[et al.] this edition written and researched by Oliver Berry... [et al.] this edition written and researched by Oliver Berry...[et al.] this edition written and researched by Andrew Bender...[et al.] this edition written and researched by Alison Bing...[et al.] this edition written and researched by David Else ...[et al.] this edition written and researched by Kate Morgan...[et al.] this edition written and researched by Mark Baker ...[et al.] this edition written and researched by Alexis Averbuck ...[et al.]