The genus ptelea in the western and southwestern United States and Mexico

MLA

Greene, Edward Lee. The Genus Ptelea In the Western and Southwestern United States and Mexico. Washington: Govt. print off., 1906.

APA

Greene, E. Lee. (1906). The genus ptelea in the western and southwestern United States and Mexico. Washington: Govt. print off.

Chicago

Greene, Edward Lee, The Genus Ptelea In the Western and Southwestern United States and Mexico. Washington: Govt. print off., 1906.