Fries, R. E. (1948). New or noteworthy Annonaceae from tropical America: Communicated december 3rd 1947 by T. G. Halle and M. G. Stålfelt. Almqvist & Wiksell.
Chicago-Zitierstil (17. Ausg.)Fries, Rob. E. New or Noteworthy Annonaceae from Tropical America: Communicated December 3rd 1947 by T. G. Halle and M. G. Stålfelt. Stockholm: Almqvist & Wiksell, 1948.
MLA-Zitierstil (9. Ausg.)Fries, Rob. E. New or Noteworthy Annonaceae from Tropical America: Communicated December 3rd 1947 by T. G. Halle and M. G. Stålfelt. Almqvist & Wiksell, 1948.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.