Traffic Control Devices, sign number M1-1, which states specifically on page I-1 that: Any traffic control device design or application provision contained
in Wormbook[2], The C. elegans Research Community, DOI:10.1895/wormbook.1.84.1 Lints, R.; Hall, D.H. (2009), “Male reproductive system, general description”
following images: File:English_metropolitan_and_non-metropolitan_counties_2010.svg licensed with Cc-by-sa-3.0, GFDL 2010-11-23T22:01:59Z Nilfanion 1108x1345