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by Butler, Robert; Muñoz, Sheila R.
by Woollacott, Angela; Adcock, Michael; Butler, Helen; et al.
by Butler, Jeffrey; Rotberg, Robert I.; Adams, John
by Butler, Robert N.; Kiikuni, Kenzo
by Kent, Barbara; Butler, Robert
by Hakutani, Yoshinobu; Butler, Robert; Byerman, Keith; et al.
by Butler, James Robert Gerard
by Robert Grant, Peter A Murray, Stuart Orr, Bella Butler, Pieter-Jan Bezemer
by Robert Olen Butler