Franklin
Spring flowers of southeastern Washington and northeastern Oregon / by Chester E. Horner and Ernest S. Booth.
MLA
Horner, Chester E, and Ernest S Booth. Spring Flowers of Southeastern Washington and Northeastern Oregon. .
APA
Horner, C. E, & Booth, E. S. Spring flowers of southeastern Washington and northeastern Oregon. .
Chicago
Horner, Chester E, and Ernest S Booth. Spring Flowers of Southeastern Washington and Northeastern Oregon.
