West. (1965). General service list of english words: With semantic frequencies and a supplementary word-list for the writing of popular science and technology (REV AND ENLARGED.). Longmans Green and Co Ltd.

West. General Service List of English Words: With Semantic Frequencies and a Supplementary Word-list for the Writing of Popular Science and Technology. REV AND ENLARGED. London: Longmans Green and Co Ltd, 1965.

West. General Service List of English Words: With Semantic Frequencies and a Supplementary Word-list for the Writing of Popular Science and Technology. REV AND ENLARGED. Longmans Green and Co Ltd, 1965.