Janssen, G., & Wilcox, R. (1997). Seasonal and monthly activity allocation fractions for nonroad engine emissions modeling. EPA, Office of Mobile Sources, Assessment and Modeling Division.
Chicago Style (17th ed.) CitationJanssen, Greg, and Rich Wilcox. Seasonal and Monthly Activity Allocation Fractions for Nonroad Engine Emissions Modeling. [Washington, D.C.]: EPA, Office of Mobile Sources, Assessment and Modeling Division, 1997.
MLA (9th ed.) CitationJanssen, Greg, and Rich Wilcox. Seasonal and Monthly Activity Allocation Fractions for Nonroad Engine Emissions Modeling. EPA, Office of Mobile Sources, Assessment and Modeling Division, 1997.
Warning: These citations may not always be 100% accurate.