Lorence, D. (1990). A PHYLOGENETIC LIST OF THE GENERA OF RUBIACEAE IN MEXICO.
Chicago-čujuhus (17. p.)Lorence, David. A PHYLOGENETIC LIST OF THE GENERA OF RUBIACEAE IN MEXICO. 1990.
MLA-čujuhus (9. p.)Lorence, David. A PHYLOGENETIC LIST OF THE GENERA OF RUBIACEAE IN MEXICO. 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
