Weiss, Abraham, 1913- Collective bargaining provisions: preamble, scope of bargaining unit, duration of agreements [by Abraham Weiss and James C. Nix] - Washington, U.S. Govt. Print. Off. [1950] - vii, 54 p. 23 cm. LCCN: l 50000145 Subjects--Topical Terms: Collective labor agreements--United States. LC Class. No.: HD8051 / .A62 no. 908-19 Dewey Class. No.: 331.116