Martins, H., & Proença, T. (2013). Van Dyne & LePine's (1998) helping and voice behaviours scale: Validation to a sample of Portuguese hospital workers.
Chicago Style (17th ed.) CitationMartins, Helena, and Teresa Proença. Van Dyne & LePine's (1998) Helping and Voice Behaviours Scale: Validation to a Sample of Portuguese Hospital Workers. 2013.
MLA (8th ed.) CitationMartins, Helena, and Teresa Proença. Van Dyne & LePine's (1998) Helping and Voice Behaviours Scale: Validation to a Sample of Portuguese Hospital Workers. 2013.
Warning: These citations may not always be 100% accurate.