Schlumbergera : Weihnachtskakteen = Christmas cacti = Kerstcactussen /
Süpplie, Frank.
Van der Zee, Dick.
Epiphytic Plant Research and Information Center.
Nijmegen : E.P.R.I.C.,
[2004?]
Text in German, English, and Dutch.
Includes bibliographical references (p. 58-59) and index.
Schlumbergera.
Christmas cactus.