APA (7th ed.) Citation

Finnish Institute of Occupational Health, H., Jahkola, A., Tuomi, K., & Ilmarinen, J. (1998). Work ability index. Helsinki.

Chicago Style (17th ed.) Citation

Finnish Institute of Occupational Health, Helsinki, Antti Jahkola, Kaija Tuomi, and Juhani Ilmarinen. Work Ability Index. Helsinki, 1998.

MLA (8th ed.) Citation

Finnish Institute of Occupational Health, Helsinki, et al. Work Ability Index. Helsinki, 1998.