APA-viite (7. p.)

Friedman, J. A., & Lowenstern, M. R. (1962). Labor law and practice in Costa Rica. United States Department of Labor, Bureau of Labor Statistics.

Chicago-viite (17. p.)

Friedman, Jesse A., ja Martha R. Lowenstern. Labor Law and Practice in Costa Rica. [Washington, D.C.]: United States Department of Labor, Bureau of Labor Statistics, 1962.

MLA-viite (8. p.)

Friedman, Jesse A., ja Martha R. Lowenstern. Labor Law and Practice in Costa Rica. United States Department of Labor, Bureau of Labor Statistics, 1962.