Malhotra O.P. Law of industrial disputes (Sections 11to 40)(Reprint 2011) Malhotra O.P. - Nagpur LexisNexis Butterworths Wadhwa India 2004 - xxiv,1111p cm. - Vol.-II . Standard No.: 37,917 Source: Textual Dewey Class. No.: X:979C:Z2, P4.2