HAMMEL, B. E. (2006). THREE NEW SPECIES OF MARCGRAVIACEAE FROM COSTA RICA, WITH REFERENCES TO RELATED SPECIES AND NOTES ON THE GENERIC PLACEMENT OF SCHWARTZIA JIMENEZII. Universidad de Costa Rica.
Chicago-Zitierstil (17. Ausg.)HAMMEL, BARRY E. THREE NEW SPECIES OF MARCGRAVIACEAE FROM COSTA RICA, WITH REFERENCES TO RELATED SPECIES AND NOTES ON THE GENERIC PLACEMENT OF SCHWARTZIA JIMENEZII. Universidad de Costa Rica, 2006.
MLA-Zitierstil (9. Ausg.)HAMMEL, BARRY E. THREE NEW SPECIES OF MARCGRAVIACEAE FROM COSTA RICA, WITH REFERENCES TO RELATED SPECIES AND NOTES ON THE GENERIC PLACEMENT OF SCHWARTZIA JIMENEZII. Universidad de Costa Rica, 2006.
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