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MLA

DeWalle, D.R, and G.M Heisler. "Landscaping to Reduce Year-round Energy Bills." , 227-237.. Print

APA

DeWalle, D., & Heisler, G. (0000). Landscaping to reduce year-round energy bills.

Chicago

DeWalle, D.R., and G.M Heisler. "Landscaping to reduce year-round energy bills" (1980): 227-237..