Flora of the state of Washington /
by Charles V. Piper.
APA Citation
Piper, C. V. (Charles Vancouver)., Colville, F. V.. (1906). Flora of the state of Washington. Washington: Govt. Print. Off..
MLA Citation
Piper, Charles V. (Charles Vancouver), 1867-1926, and Frederick V. Colville. Flora of the State of Washington. Washington: Govt. Print. Off., 1906.
Warning: These citations may not always be complete (especially for serials).