National Labor Relations Board v. Wyman-Gordon Company, 394 U.S. 759 (1969).
Frank A. Valenti,
Administrative Law—National Labor Relations Board Order Requiring Compliance with the ExcelsiorRule Held Enforceable Although Rule Not Adopted in Accordance With Rule Making Provisions of the Administrative Procedure Act,
Buff. L. Rev.
Available at: https://digitalcommons.law.buffalo.edu/buffalolawreview/vol19/iss2/19