For Cannabaceae
Kubitzki, K., J.G. Rohwer, and V. Bittrich, eds. 1993. The families and genera of vascular plants. II. Flowering plants – Dicotyledons – Magnoliid, Hamamelid and Caryophyllid families. Springer, Berlin. 653 pp.
Sherman-Brotles, S.L., W.T. Barker, and L.M. Schultz. 1997. Ulmaceae. In Flora of North America Editorial Committee. 1997. Flora of North America north of Mexico. Volume 3, Magnoliophyta: Magnoliidae and Hamamelidae. Oxford Univ. Press, New York, NY. 590 pp.
Small, E. 1997. Cannabaceae. In Flora of North America Editorial Committee. 1997. Flora of North America north of Mexico. Volume 3, Magnoliophyta: Magnoliidae and Hamamelidae. Oxford Univ. Press, New York, NY. 590 pp.
Sytsma, K.J., J. Morawetz, J.C. Pires, M. Nepokroeff, E. Conti, M. Zjhra, J.C. Hall, and M.W. Chase. 2002. Urticalean rosids: circumscription, rosid ancestry, and phylogenetics based on rbcL, trnL-F, and ndhF sequences. Amer. J. Botany 89: 1531-1546.
Todzia In Kubitzki, K., J.G. Rohwer, and V. Bittrich, eds. 1993. The families and genera of vascular plants. II. Flowering plants – Dicotyledons – Magnoliid, Hamamelid and Caryophyllid families. Springer, Berlin. 653 pp.
Yang, M.Q., R. van Velzen, F.T. Bakker, A. Sattarian, D.-Z. Li, & T.-S. Yi. 2013. Molecular phylogenetics and character evolution of Cannabaceae. Taxon 62: 473-485.
Zavada, M.S., and M. Kim. 1996. Phylogenetic analysis of Ulmaceae. Plant Syst. Evol. 200: 13-20.