Paper  bibtex   

@incollection{townsendUlmaceae1980,
  title = {Ulmaceae},
  booktitle = {Flora of {{Iraq}}, Vol 4},
  author = {Townsend, C. C.},
  editor = {Townsend, C. C. and Guest, E.},
  date = {1980},
  pages = {65--75},
  publisher = {{Ministry of Agriculture \& Agrarian Reform}},
  location = {{Baghdad}},
  url = {https://books.google.it/books?id=mgNHAAAAYAAJ},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13603103,celtis-spp,iraq,species-description,taxonomy,ulmus-spp}
}