Creating meaning : advanced reading and writing / Laurie Blass, Hannah Friesen, Kathy Block . New York :  Oxford University Press , c2008 . 206 s . ISBN 978-0-19-472300-8 . [1, of that borrowed 0]

Weak separability in coffee demand systems / Daniel Sellen, Ellen Goddard . Guelph :  University of Guelph , 1996 . 17 s . [1, of that borrowed 0]