The Encyclopaedia Britannica. 17-18 The Encyclopaedia Britannica. 5 The Encyclopaedia Britannica Encyclopaedia of antibiotics The Enyclopaedia Britannica Encyclopaedia ornamental plant The new encyclopaedia Britannica,: Index:. A-K The new encyclopaedia Britannica,: Index:. L-Z The new encyclopaedia britannica Encyclopaedia of diagnostics