(1999). Roses: Easy plants for more beautiful gardens. Boston: Houghton Mifflin.
Chicago Style CitationRoses: Easy Plants for More Beautiful Gardens. Boston: Houghton Mifflin, 1999.
Cita MLARoses: Easy Plants for More Beautiful Gardens. Boston: Houghton Mifflin, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.