West, M. (1967). A general service list of English words: With semantic frequencies and a supplementary word-list for the writing of popular science and technology. Longman.
استشهاد بنمط شيكاغوWest, Michael. A General Service List of English Words: With Semantic Frequencies and a Supplementary Word-list for the Writing of Popular Science and Technology. London: Longman, 1967.
MLA استشهادWest, Michael. A General Service List of English Words: With Semantic Frequencies and a Supplementary Word-list for the Writing of Popular Science and Technology. Longman, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.