El iris de La Paz.

Mode of access: Internet.

Determination of motor vehicle eye height for highway design. Final report.

Federal Highway Administration, Office of Research and Development, Washington, D.C.

Observations on the reports laid before the Right Hon. and Hon. the Directors General of Inland Navigation in Ireland, for the improvement of Dublin Harbor... : Assisted by ten engravings with the general outlines of a plan for the improvement of the harbour of Dublin, and that at Irelands̕ eye.

Mode of access: Internet.

Iris check list of registered cultivar names, 1950-1959.

Mode of access: Internet.

Alphabetical iris check list, 1949.

Mode of access: Internet.