Stern, David, author
Chandos, 2013
eBooks
Raymond H. Shove ... [and others]
University of Minnesota Press, 1963
Buku Teks
edited by David Baker and Wendy Evans
Emerald, 2017
eBooks
edited by Dawn Lowe–Wincentsen
Chandos, 2015
eBooks
University of Texas Press,
Majalah, Jurnal, Buletin