APA

De-icing salt information kit, .Air pollution damages. Trees. ( U.S. Department of Agriculture, Forest Service, Northeastern Area, State and Private Forestry. 1973). : De-icing salt information kit.

Chicago

De-icing salt information kit, .Air pollution damages. Trees. ( U.S. Department of Agriculture, Forest Service, Northeastern Area, State and Private Forestry. 1973). : De-icing salt information kit.

Harvard

De-icing salt information kit, .Air pollution damages. Trees. ( U.S. Department of Agriculture, Forest Service, Northeastern Area, State and Private Forestry. 1973). : De-icing salt information kit.

MLA

De-icing salt information kit, .: De-icing salt information kit. .