@book{131384,
	author = {Mackin, Ronald. and Seidl, Jennifer,},
	title = {Exercises in English patterns and usage /},
	publisher = {Oxford University Press,},
	year = {1979.},
	address = {Oxford ;},
	edition = {2d ed.},
	note = {Based on material in Guide to patterns and usage in English by A. S. Hornby.}
}