Mackin, Ronald. Exercises in English patterns and usage / Ronald Mackin and Jennifer Seidl. - 2d ed. - Oxford ; New York : Oxford University Press, 1979. - xvi, 160 p. ; Based on material in Guide to patterns and usage in English by A. S. Hornby. ISBN: 0194327175 Subjects--Topical Terms: English languageEnglish language Dewey Class. No.: 425 MAC