APA-viite (7. p.)

Clay Karen, Lewis Joshua, Severnini Edson, & National Bureau of Economic Research. Canary in a Coal Mine, Infant Mortality, Property Values, and Tradeoffs Associated with Mid-20th Century Air Pollution.

Chicago-viite (17. p.)

Clay Karen, Lewis Joshua, Severnini Edson, ja National Bureau of Economic Research. Canary in a Coal Mine, Infant Mortality, Property Values, and Tradeoffs Associated with Mid-20th Century Air Pollution.

MLA-viite (9. p.)

Clay Karen, et al. Canary in a Coal Mine, Infant Mortality, Property Values, and Tradeoffs Associated with Mid-20th Century Air Pollution.